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Finding the Fourth Proportional to 66,472.40, 99,708.60 and 59,099.60

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Solution

The fourth proportional to 66,472.40, 99,708.60 and 59,099.60 is: 88,649.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472.40 : 99,708.60 = 59,099.60 : x
  2. Step 2: Convert to fraction form
    66,472.40/99,708.60 = 59,099.60/x
  3. Step 3: Cross multiply
    66,472.40x = 99,708.60 × 59,099.60
  4. Step 4: Simplify right side
    66,472.40x = 5,892,738,376.56
  5. Step 5: Solve for x
    x = 5,892,738,376.56/66,472.40
  6. Step 6: Final answer
    x = 88,649.40

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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.