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Finding the Fourth Proportional to 66,656.72, 99,984.98 and 26,693.70

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Solution

The fourth proportional to 66,656.72, 99,984.98 and 26,693.70 is: 40,040.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,656.72 : 99,984.98 = 26,693.70 : x
  2. Step 2: Convert to fraction form
    66,656.72/99,984.98 = 26,693.70/x
  3. Step 3: Cross multiply
    66,656.72x = 99,984.98 × 26,693.70
  4. Step 4: Simplify right side
    66,656.72x = 2,668,969,060.63
  5. Step 5: Solve for x
    x = 2,668,969,060.63/66,656.72
  6. Step 6: Final answer
    x = 40,040.51

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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.