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Finding the Fourth Proportional to 18,735.51, 28,114.08 and 10,414.83

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Solution

The fourth proportional to 18,735.51, 28,114.08 and 10,414.83 is: 15,628.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.51 : 28,114.08 = 10,414.83 : x
  2. Step 2: Convert to fraction form
    18,735.51/28,114.08 = 10,414.83/x
  3. Step 3: Cross multiply
    18,735.51x = 28,114.08 × 10,414.83
  4. Step 4: Simplify right side
    18,735.51x = 292,803,363.81
  5. Step 5: Solve for x
    x = 292,803,363.81/18,735.51
  6. Step 6: Final answer
    x = 15,628.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.