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Finding the Fourth Proportional to 61,886.48, 92,812.70 and 30,280.28

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Solution

The fourth proportional to 61,886.48, 92,812.70 and 30,280.28 is: 45,412.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,886.48 : 92,812.70 = 30,280.28 : x
  2. Step 2: Convert to fraction form
    61,886.48/92,812.70 = 30,280.28/x
  3. Step 3: Cross multiply
    61,886.48x = 92,812.70 × 30,280.28
  4. Step 4: Simplify right side
    61,886.48x = 2,810,394,543.56
  5. Step 5: Solve for x
    x = 2,810,394,543.56/61,886.48
  6. Step 6: Final answer
    x = 45,412.09

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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.