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Finding the Fourth Proportional to 65,599.44, 90,568.44 and 45,448.80

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Solution

The fourth proportional to 65,599.44, 90,568.44 and 45,448.80 is: 62,747.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,599.44 : 90,568.44 = 45,448.80 : x
  2. Step 2: Convert to fraction form
    65,599.44/90,568.44 = 45,448.80/x
  3. Step 3: Cross multiply
    65,599.44x = 90,568.44 × 45,448.80
  4. Step 4: Simplify right side
    65,599.44x = 4,116,226,915.87
  5. Step 5: Solve for x
    x = 4,116,226,915.87/65,599.44
  6. Step 6: Final answer
    x = 62,747.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.