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Finding the Fourth Proportional to 72,330.90, 108,496.35 and 22,410.60

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Solution

The fourth proportional to 72,330.90, 108,496.35 and 22,410.60 is: 33,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,330.90 : 108,496.35 = 22,410.60 : x
  2. Step 2: Convert to fraction form
    72,330.90/108,496.35 = 22,410.60/x
  3. Step 3: Cross multiply
    72,330.90x = 108,496.35 × 22,410.60
  4. Step 4: Simplify right side
    72,330.90x = 2,431,468,301.31
  5. Step 5: Solve for x
    x = 2,431,468,301.31/72,330.90
  6. Step 6: Final answer
    x = 33,615.90

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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.