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Finding the Fourth Proportional to 15,140.70, 22,724.55 and 8,892.90

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Solution

The fourth proportional to 15,140.70, 22,724.55 and 8,892.90 is: 13,347.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.70 : 22,724.55 = 8,892.90 : x
  2. Step 2: Convert to fraction form
    15,140.70/22,724.55 = 8,892.90/x
  3. Step 3: Cross multiply
    15,140.70x = 22,724.55 × 8,892.90
  4. Step 4: Simplify right side
    15,140.70x = 202,087,150.70
  5. Step 5: Solve for x
    x = 202,087,150.70/15,140.70
  6. Step 6: Final answer
    x = 13,347.28

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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.