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Finding the Fourth Proportional to 65,008.60, 97,512.90 and 53,198.80

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Solution

The fourth proportional to 65,008.60, 97,512.90 and 53,198.80 is: 79,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,008.60 : 97,512.90 = 53,198.80 : x
  2. Step 2: Convert to fraction form
    65,008.60/97,512.90 = 53,198.80/x
  3. Step 3: Cross multiply
    65,008.60x = 97,512.90 × 53,198.80
  4. Step 4: Simplify right side
    65,008.60x = 5,187,569,264.52
  5. Step 5: Solve for x
    x = 5,187,569,264.52/65,008.60
  6. Step 6: Final answer
    x = 79,798.20

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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.