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Finding the Fourth Proportional to 61,881.57, 92,807.48 and 28,569.63

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Solution

The fourth proportional to 61,881.57, 92,807.48 and 28,569.63 is: 42,847.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,881.57 : 92,807.48 = 28,569.63 : x
  2. Step 2: Convert to fraction form
    61,881.57/92,807.48 = 28,569.63/x
  3. Step 3: Cross multiply
    61,881.57x = 92,807.48 × 28,569.63
  4. Step 4: Simplify right side
    61,881.57x = 2,651,475,221.98
  5. Step 5: Solve for x
    x = 2,651,475,221.98/61,881.57
  6. Step 6: Final answer
    x = 42,847.58

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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.