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Finding the Fourth Proportional to 66,752.80, 100,244.40 and 35,648.80

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Solution

The fourth proportional to 66,752.80, 100,244.40 and 35,648.80 is: 53,534.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,752.80 : 100,244.40 = 35,648.80 : x
  2. Step 2: Convert to fraction form
    66,752.80/100,244.40 = 35,648.80/x
  3. Step 3: Cross multiply
    66,752.80x = 100,244.40 × 35,648.80
  4. Step 4: Simplify right side
    66,752.80x = 3,573,592,566.72
  5. Step 5: Solve for x
    x = 3,573,592,566.72/66,752.80
  6. Step 6: Final answer
    x = 53,534.72

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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.