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Finding the Fourth Proportional to 48,312.71, 66,672.24 and 36,191.72

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Solution

The fourth proportional to 48,312.71, 66,672.24 and 36,191.72 is: 49,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,312.71 : 66,672.24 = 36,191.72 : x
  2. Step 2: Convert to fraction form
    48,312.71/66,672.24 = 36,191.72/x
  3. Step 3: Cross multiply
    48,312.71x = 66,672.24 × 36,191.72
  4. Step 4: Simplify right side
    48,312.71x = 2,412,983,041.85
  5. Step 5: Solve for x
    x = 2,412,983,041.85/48,312.71
  6. Step 6: Final answer
    x = 49,945.10

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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.