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Finding the Fourth Proportional to 66,007.90, 98,999.70 and 41,003.20

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Solution

The fourth proportional to 66,007.90, 98,999.70 and 41,003.20 is: 61,497.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,007.90 : 98,999.70 = 41,003.20 : x
  2. Step 2: Convert to fraction form
    66,007.90/98,999.70 = 41,003.20/x
  3. Step 3: Cross multiply
    66,007.90x = 98,999.70 × 41,003.20
  4. Step 4: Simplify right side
    66,007.90x = 4,059,304,499.04
  5. Step 5: Solve for x
    x = 4,059,304,499.04/66,007.90
  6. Step 6: Final answer
    x = 61,497.25

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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.