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Finding the Fourth Proportional to 61,815.04, 85,304.01 and 33,520.39

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Solution

The fourth proportional to 61,815.04, 85,304.01 and 33,520.39 is: 46,257.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,815.04 : 85,304.01 = 33,520.39 : x
  2. Step 2: Convert to fraction form
    61,815.04/85,304.01 = 33,520.39/x
  3. Step 3: Cross multiply
    61,815.04x = 85,304.01 × 33,520.39
  4. Step 4: Simplify right side
    61,815.04x = 2,859,423,683.76
  5. Step 5: Solve for x
    x = 2,859,423,683.76/61,815.04
  6. Step 6: Final answer
    x = 46,257.73

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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.