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Finding the Fourth Proportional to 61,677.84, 85,117.48 and 37,799.90

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Solution

The fourth proportional to 61,677.84, 85,117.48 and 37,799.90 is: 52,165.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,677.84 : 85,117.48 = 37,799.90 : x
  2. Step 2: Convert to fraction form
    61,677.84/85,117.48 = 37,799.90/x
  3. Step 3: Cross multiply
    61,677.84x = 85,117.48 × 37,799.90
  4. Step 4: Simplify right side
    61,677.84x = 3,217,432,232.25
  5. Step 5: Solve for x
    x = 3,217,432,232.25/61,677.84
  6. Step 6: Final answer
    x = 52,165.12

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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.