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Finding the Fourth Proportional to 57,368.61, 86,068.48 and 17,385.98

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Solution

The fourth proportional to 57,368.61, 86,068.48 and 17,385.98 is: 26,083.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,368.61 : 86,068.48 = 17,385.98 : x
  2. Step 2: Convert to fraction form
    57,368.61/86,068.48 = 17,385.98/x
  3. Step 3: Cross multiply
    57,368.61x = 86,068.48 × 17,385.98
  4. Step 4: Simplify right side
    57,368.61x = 1,496,384,463.30
  5. Step 5: Solve for x
    x = 1,496,384,463.30/57,368.61
  6. Step 6: Final answer
    x = 26,083.68

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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.