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Finding the Fourth Proportional to 61,712.84, 92,559.80 and 19,587.46

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Solution

The fourth proportional to 61,712.84, 92,559.80 and 19,587.46 is: 29,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,712.84 : 92,559.80 = 19,587.46 : x
  2. Step 2: Convert to fraction form
    61,712.84/92,559.80 = 19,587.46/x
  3. Step 3: Cross multiply
    61,712.84x = 92,559.80 × 19,587.46
  4. Step 4: Simplify right side
    61,712.84x = 1,813,011,380.11
  5. Step 5: Solve for x
    x = 1,813,011,380.11/61,712.84
  6. Step 6: Final answer
    x = 29,378.19

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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.