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Finding the Fourth Proportional to 61,693.56, 92,538.66 and 17,320.68

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Solution

The fourth proportional to 61,693.56, 92,538.66 and 17,320.68 is: 25,980.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,693.56 : 92,538.66 = 17,320.68 : x
  2. Step 2: Convert to fraction form
    61,693.56/92,538.66 = 17,320.68/x
  3. Step 3: Cross multiply
    61,693.56x = 92,538.66 × 17,320.68
  4. Step 4: Simplify right side
    61,693.56x = 1,602,832,517.49
  5. Step 5: Solve for x
    x = 1,602,832,517.49/61,693.56
  6. Step 6: Final answer
    x = 25,980.55

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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.