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Finding the Fourth Proportional to 66,240.72, 99,405.70 and 24,687.72

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Solution

The fourth proportional to 66,240.72, 99,405.70 and 24,687.72 is: 37,048.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,240.72 : 99,405.70 = 24,687.72 : x
  2. Step 2: Convert to fraction form
    66,240.72/99,405.70 = 24,687.72/x
  3. Step 3: Cross multiply
    66,240.72x = 99,405.70 × 24,687.72
  4. Step 4: Simplify right side
    66,240.72x = 2,454,100,088.00
  5. Step 5: Solve for x
    x = 2,454,100,088.00/66,240.72
  6. Step 6: Final answer
    x = 37,048.21

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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.