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Finding the Fourth Proportional to 35,612.46, 53,431.08 and 13,432.20

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Solution

The fourth proportional to 35,612.46, 53,431.08 and 13,432.20 is: 20,152.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,612.46 : 53,431.08 = 13,432.20 : x
  2. Step 2: Convert to fraction form
    35,612.46/53,431.08 = 13,432.20/x
  3. Step 3: Cross multiply
    35,612.46x = 53,431.08 × 13,432.20
  4. Step 4: Simplify right side
    35,612.46x = 717,696,952.78
  5. Step 5: Solve for x
    x = 717,696,952.78/35,612.46
  6. Step 6: Final answer
    x = 20,152.97

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