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Finding the Fourth Proportional to 48,375.70, 66,772.38 and 29,255.50

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Solution

The fourth proportional to 48,375.70, 66,772.38 and 29,255.50 is: 40,381.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,375.70 : 66,772.38 = 29,255.50 : x
  2. Step 2: Convert to fraction form
    48,375.70/66,772.38 = 29,255.50/x
  3. Step 3: Cross multiply
    48,375.70x = 66,772.38 × 29,255.50
  4. Step 4: Simplify right side
    48,375.70x = 1,953,459,363.09
  5. Step 5: Solve for x
    x = 1,953,459,363.09/48,375.70
  6. Step 6: Final answer
    x = 40,381.00

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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.