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Finding the Fourth Proportional to 61,683.93, 92,505.04 and 28,385.84

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Solution

The fourth proportional to 61,683.93, 92,505.04 and 28,385.84 is: 42,569.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,683.93 : 92,505.04 = 28,385.84 : x
  2. Step 2: Convert to fraction form
    61,683.93/92,505.04 = 28,385.84/x
  3. Step 3: Cross multiply
    61,683.93x = 92,505.04 × 28,385.84
  4. Step 4: Simplify right side
    61,683.93x = 2,625,833,424.93
  5. Step 5: Solve for x
    x = 2,625,833,424.93/61,683.93
  6. Step 6: Final answer
    x = 42,569.17

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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.