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Finding the Fourth Proportional to 66,044.40, 91,132.80 and 37,752

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Solution

The fourth proportional to 66,044.40, 91,132.80 and 37,752 is: 52,092.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,044.40 : 91,132.80 = 37,752 : x
  2. Step 2: Convert to fraction form
    66,044.40/91,132.80 = 37,752/x
  3. Step 3: Cross multiply
    66,044.40x = 91,132.80 × 37,752
  4. Step 4: Simplify right side
    66,044.40x = 3,440,445,465.60
  5. Step 5: Solve for x
    x = 3,440,445,465.60/66,044.40
  6. Step 6: Final answer
    x = 52,092.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.