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Finding the Fourth Proportional to 48,301.60, 72,452.40 and 42,858.40

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Solution

The fourth proportional to 48,301.60, 72,452.40 and 42,858.40 is: 64,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,301.60 : 72,452.40 = 42,858.40 : x
  2. Step 2: Convert to fraction form
    48,301.60/72,452.40 = 42,858.40/x
  3. Step 3: Cross multiply
    48,301.60x = 72,452.40 × 42,858.40
  4. Step 4: Simplify right side
    48,301.60x = 3,105,193,940.16
  5. Step 5: Solve for x
    x = 3,105,193,940.16/48,301.60
  6. Step 6: Final answer
    x = 64,287.60

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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.