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Finding the Fourth Proportional to 66,572.22, 99,859.28 and 37,177.12

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Solution

The fourth proportional to 66,572.22, 99,859.28 and 37,177.12 is: 55,766.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,572.22 : 99,859.28 = 37,177.12 : x
  2. Step 2: Convert to fraction form
    66,572.22/99,859.28 = 37,177.12/x
  3. Step 3: Cross multiply
    66,572.22x = 99,859.28 × 37,177.12
  4. Step 4: Simplify right side
    66,572.22x = 3,712,480,435.67
  5. Step 5: Solve for x
    x = 3,712,480,435.67/66,572.22
  6. Step 6: Final answer
    x = 55,766.21

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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.