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Finding the Fourth Proportional to 18,139.25, 25,032.27 and 10,590.83

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Solution

The fourth proportional to 18,139.25, 25,032.27 and 10,590.83 is: 14,615.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.25 : 25,032.27 = 10,590.83 : x
  2. Step 2: Convert to fraction form
    18,139.25/25,032.27 = 10,590.83/x
  3. Step 3: Cross multiply
    18,139.25x = 25,032.27 × 10,590.83
  4. Step 4: Simplify right side
    18,139.25x = 265,112,516.08
  5. Step 5: Solve for x
    x = 265,112,516.08/18,139.25
  6. Step 6: Final answer
    x = 14,615.41

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.