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Finding the Fourth Proportional to 18,459.44, 25,470.62 and 10,501.20

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Solution

The fourth proportional to 18,459.44, 25,470.62 and 10,501.20 is: 14,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,459.44 : 25,470.62 = 10,501.20 : x
  2. Step 2: Convert to fraction form
    18,459.44/25,470.62 = 10,501.20/x
  3. Step 3: Cross multiply
    18,459.44x = 25,470.62 × 10,501.20
  4. Step 4: Simplify right side
    18,459.44x = 267,472,074.74
  5. Step 5: Solve for x
    x = 267,472,074.74/18,459.44
  6. Step 6: Final answer
    x = 14,489.72

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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.