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Finding the Fourth Proportional to 66,466.40, 99,614.28 and 29,016.32

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Solution

The fourth proportional to 66,466.40, 99,614.28 and 29,016.32 is: 43,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,466.40 : 99,614.28 = 29,016.32 : x
  2. Step 2: Convert to fraction form
    66,466.40/99,614.28 = 29,016.32/x
  3. Step 3: Cross multiply
    66,466.40x = 99,614.28 × 29,016.32
  4. Step 4: Simplify right side
    66,466.40x = 2,890,439,825.05
  5. Step 5: Solve for x
    x = 2,890,439,825.05/66,466.40
  6. Step 6: Final answer
    x = 43,487.23

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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.