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Finding the Fourth Proportional to 18,590.70, 25,653.42 and 11,035.68

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Solution

The fourth proportional to 18,590.70, 25,653.42 and 11,035.68 is: 15,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.70 : 25,653.42 = 11,035.68 : x
  2. Step 2: Convert to fraction form
    18,590.70/25,653.42 = 11,035.68/x
  3. Step 3: Cross multiply
    18,590.70x = 25,653.42 × 11,035.68
  4. Step 4: Simplify right side
    18,590.70x = 283,102,934.03
  5. Step 5: Solve for x
    x = 283,102,934.03/18,590.70
  6. Step 6: Final answer
    x = 15,228.20

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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.