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Finding the Fourth Proportional to 42,299.28, 58,374 and 23,436

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Solution

The fourth proportional to 42,299.28, 58,374 and 23,436 is: 32,342.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,299.28 : 58,374 = 23,436 : x
  2. Step 2: Convert to fraction form
    42,299.28/58,374 = 23,436/x
  3. Step 3: Cross multiply
    42,299.28x = 58,374 × 23,436
  4. Step 4: Simplify right side
    42,299.28x = 1,368,053,064
  5. Step 5: Solve for x
    x = 1,368,053,064/42,299.28
  6. Step 6: Final answer
    x = 32,342.23

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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.