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Finding the Fourth Proportional to 66,381.96, 91,640.95 and 44,984.74

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Solution

The fourth proportional to 66,381.96, 91,640.95 and 44,984.74 is: 62,101.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,381.96 : 91,640.95 = 44,984.74 : x
  2. Step 2: Convert to fraction form
    66,381.96/91,640.95 = 44,984.74/x
  3. Step 3: Cross multiply
    66,381.96x = 91,640.95 × 44,984.74
  4. Step 4: Simplify right side
    66,381.96x = 4,122,444,309.10
  5. Step 5: Solve for x
    x = 4,122,444,309.10/66,381.96
  6. Step 6: Final answer
    x = 62,101.88

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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.