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Finding the Fourth Proportional to 65,215.80, 97,799.40 and 23,079.60

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Solution

The fourth proportional to 65,215.80, 97,799.40 and 23,079.60 is: 34,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,215.80 : 97,799.40 = 23,079.60 : x
  2. Step 2: Convert to fraction form
    65,215.80/97,799.40 = 23,079.60/x
  3. Step 3: Cross multiply
    65,215.80x = 97,799.40 × 23,079.60
  4. Step 4: Simplify right side
    65,215.80x = 2,257,171,032.24
  5. Step 5: Solve for x
    x = 2,257,171,032.24/65,215.80
  6. Step 6: Final answer
    x = 34,610.80

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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.