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Finding the Fourth Proportional to 61,095.36, 91,657.62 and 21,655.92

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Solution

The fourth proportional to 61,095.36, 91,657.62 and 21,655.92 is: 32,489.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,095.36 : 91,657.62 = 21,655.92 : x
  2. Step 2: Convert to fraction form
    61,095.36/91,657.62 = 21,655.92/x
  3. Step 3: Cross multiply
    61,095.36x = 91,657.62 × 21,655.92
  4. Step 4: Simplify right side
    61,095.36x = 1,984,930,086.11
  5. Step 5: Solve for x
    x = 1,984,930,086.11/61,095.36
  6. Step 6: Final answer
    x = 32,489.05

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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.