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Finding the Fourth Proportional to 85,063.53, 127,590.12 and 37,664.76

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Solution

The fourth proportional to 85,063.53, 127,590.12 and 37,664.76 is: 56,494.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,063.53 : 127,590.12 = 37,664.76 : x
  2. Step 2: Convert to fraction form
    85,063.53/127,590.12 = 37,664.76/x
  3. Step 3: Cross multiply
    85,063.53x = 127,590.12 × 37,664.76
  4. Step 4: Simplify right side
    85,063.53x = 4,805,651,248.17
  5. Step 5: Solve for x
    x = 4,805,651,248.17/85,063.53
  6. Step 6: Final answer
    x = 56,494.85

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1.5x scale

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.