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Finding the Fourth Proportional to 66,807.40, 100,016.70 and 59,031.40

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Solution

The fourth proportional to 66,807.40, 100,016.70 and 59,031.40 is: 88,375.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,807.40 : 100,016.70 = 59,031.40 : x
  2. Step 2: Convert to fraction form
    66,807.40/100,016.70 = 59,031.40/x
  3. Step 3: Cross multiply
    66,807.40x = 100,016.70 × 59,031.40
  4. Step 4: Simplify right side
    66,807.40x = 5,904,125,824.38
  5. Step 5: Solve for x
    x = 5,904,125,824.38/66,807.40
  6. Step 6: Final answer
    x = 88,375.33

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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.