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Finding the Fourth Proportional to 61,225.92, 84,490.56 and 34,368.48

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Solution

The fourth proportional to 61,225.92, 84,490.56 and 34,368.48 is: 47,427.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,225.92 : 84,490.56 = 34,368.48 : x
  2. Step 2: Convert to fraction form
    61,225.92/84,490.56 = 34,368.48/x
  3. Step 3: Cross multiply
    61,225.92x = 84,490.56 × 34,368.48
  4. Step 4: Simplify right side
    61,225.92x = 2,903,812,121.55
  5. Step 5: Solve for x
    x = 2,903,812,121.55/61,225.92
  6. Step 6: Final answer
    x = 47,427.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.