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Finding the Fourth Proportional to 48,165.40, 66,478.64 and 29,308.60

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Solution

The fourth proportional to 48,165.40, 66,478.64 and 29,308.60 is: 40,452.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,165.40 : 66,478.64 = 29,308.60 : x
  2. Step 2: Convert to fraction form
    48,165.40/66,478.64 = 29,308.60/x
  3. Step 3: Cross multiply
    48,165.40x = 66,478.64 × 29,308.60
  4. Step 4: Simplify right side
    48,165.40x = 1,948,395,868.30
  5. Step 5: Solve for x
    x = 1,948,395,868.30/48,165.40
  6. Step 6: Final answer
    x = 40,452.19

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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.