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Finding the Fourth Proportional to 66,439.68, 99,555.72 and 41,763.84

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Solution

The fourth proportional to 66,439.68, 99,555.72 and 41,763.84 is: 62,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,439.68 : 99,555.72 = 41,763.84 : x
  2. Step 2: Convert to fraction form
    66,439.68/99,555.72 = 41,763.84/x
  3. Step 3: Cross multiply
    66,439.68x = 99,555.72 × 41,763.84
  4. Step 4: Simplify right side
    66,439.68x = 4,157,829,161.16
  5. Step 5: Solve for x
    x = 4,157,829,161.16/66,439.68
  6. Step 6: Final answer
    x = 62,580.51

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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.