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Finding the Fourth Proportional to 65,059.20, 97,588.80 and 15,811.20

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Solution

The fourth proportional to 65,059.20, 97,588.80 and 15,811.20 is: 23,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,059.20 : 97,588.80 = 15,811.20 : x
  2. Step 2: Convert to fraction form
    65,059.20/97,588.80 = 15,811.20/x
  3. Step 3: Cross multiply
    65,059.20x = 97,588.80 × 15,811.20
  4. Step 4: Simplify right side
    65,059.20x = 1,542,996,034.56
  5. Step 5: Solve for x
    x = 1,542,996,034.56/65,059.20
  6. Step 6: Final answer
    x = 23,716.80

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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.