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Finding the Fourth Proportional to 61,926.48, 85,456.74 and 35,068.80

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Solution

The fourth proportional to 61,926.48, 85,456.74 and 35,068.80 is: 48,393.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,926.48 : 85,456.74 = 35,068.80 : x
  2. Step 2: Convert to fraction form
    61,926.48/85,456.74 = 35,068.80/x
  3. Step 3: Cross multiply
    61,926.48x = 85,456.74 × 35,068.80
  4. Step 4: Simplify right side
    61,926.48x = 2,996,865,323.71
  5. Step 5: Solve for x
    x = 2,996,865,323.71/61,926.48
  6. Step 6: Final answer
    x = 48,393.92

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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.