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Finding the Fourth Proportional to 61,972.92, 85,522.80 and 33,678.72

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Solution

The fourth proportional to 61,972.92, 85,522.80 and 33,678.72 is: 46,476.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,972.92 : 85,522.80 = 33,678.72 : x
  2. Step 2: Convert to fraction form
    61,972.92/85,522.80 = 33,678.72/x
  3. Step 3: Cross multiply
    61,972.92x = 85,522.80 × 33,678.72
  4. Step 4: Simplify right side
    61,972.92x = 2,880,298,434.82
  5. Step 5: Solve for x
    x = 2,880,298,434.82/61,972.92
  6. Step 6: Final answer
    x = 46,476.73

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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.