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Finding the Fourth Proportional to 42,336, 58,425.12 and 27,457.92

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Solution

The fourth proportional to 42,336, 58,425.12 and 27,457.92 is: 37,892.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,336 : 58,425.12 = 27,457.92 : x
  2. Step 2: Convert to fraction form
    42,336/58,425.12 = 27,457.92/x
  3. Step 3: Cross multiply
    42,336x = 58,425.12 × 27,457.92
  4. Step 4: Simplify right side
    42,336x = 1,604,232,270.95
  5. Step 5: Solve for x
    x = 1,604,232,270.95/42,336
  6. Step 6: Final answer
    x = 37,892.86

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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.