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Finding the Fourth Proportional to 61,064.76, 84,294.78 and 41,971.92

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Solution

The fourth proportional to 61,064.76, 84,294.78 and 41,971.92 is: 57,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,064.76 : 84,294.78 = 41,971.92 : x
  2. Step 2: Convert to fraction form
    61,064.76/84,294.78 = 41,971.92/x
  3. Step 3: Cross multiply
    61,064.76x = 84,294.78 × 41,971.92
  4. Step 4: Simplify right side
    61,064.76x = 3,538,013,762.58
  5. Step 5: Solve for x
    x = 3,538,013,762.58/61,064.76
  6. Step 6: Final answer
    x = 57,938.72

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1.5x scale

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.