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Finding the Fourth Proportional to 61,881.50, 92,807.36 and 28,569.56

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Solution

The fourth proportional to 61,881.50, 92,807.36 and 28,569.56 is: 42,847.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,881.50 : 92,807.36 = 28,569.56 : x
  2. Step 2: Convert to fraction form
    61,881.50/92,807.36 = 28,569.56/x
  3. Step 3: Cross multiply
    61,881.50x = 92,807.36 × 28,569.56
  4. Step 4: Simplify right side
    61,881.50x = 2,651,465,047.35
  5. Step 5: Solve for x
    x = 2,651,465,047.35/61,881.50
  6. Step 6: Final answer
    x = 42,847.46

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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.