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Finding the Fourth Proportional to 27,136.32, 40,612.32 and 15,432

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Solution

The fourth proportional to 27,136.32, 40,612.32 and 15,432 is: 23,095.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,136.32 : 40,612.32 = 15,432 : x
  2. Step 2: Convert to fraction form
    27,136.32/40,612.32 = 15,432/x
  3. Step 3: Cross multiply
    27,136.32x = 40,612.32 × 15,432
  4. Step 4: Simplify right side
    27,136.32x = 626,729,322.24
  5. Step 5: Solve for x
    x = 626,729,322.24/27,136.32
  6. Step 6: Final answer
    x = 23,095.59

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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.