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Finding the Fourth Proportional to 66,209.79, 91,367.60 and 37,532.10

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Solution

The fourth proportional to 66,209.79, 91,367.60 and 37,532.10 is: 51,793.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,209.79 : 91,367.60 = 37,532.10 : x
  2. Step 2: Convert to fraction form
    66,209.79/91,367.60 = 37,532.10/x
  3. Step 3: Cross multiply
    66,209.79x = 91,367.60 × 37,532.10
  4. Step 4: Simplify right side
    66,209.79x = 3,429,217,899.96
  5. Step 5: Solve for x
    x = 3,429,217,899.96/66,209.79
  6. Step 6: Final answer
    x = 51,793.22

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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.