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Finding the Fourth Proportional to 61,658.40, 85,088.28 and 33,363.96

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Solution

The fourth proportional to 61,658.40, 85,088.28 and 33,363.96 is: 46,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,658.40 : 85,088.28 = 33,363.96 : x
  2. Step 2: Convert to fraction form
    61,658.40/85,088.28 = 33,363.96/x
  3. Step 3: Cross multiply
    61,658.40x = 85,088.28 × 33,363.96
  4. Step 4: Simplify right side
    61,658.40x = 2,838,881,970.39
  5. Step 5: Solve for x
    x = 2,838,881,970.39/61,658.40
  6. Step 6: Final answer
    x = 46,042.10

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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.