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Finding the Fourth Proportional to 78,348.97, 117,531.81 and 25,022.32

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Solution

The fourth proportional to 78,348.97, 117,531.81 and 25,022.32 is: 37,536.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,348.97 : 117,531.81 = 25,022.32 : x
  2. Step 2: Convert to fraction form
    78,348.97/117,531.81 = 25,022.32/x
  3. Step 3: Cross multiply
    78,348.97x = 117,531.81 × 25,022.32
  4. Step 4: Simplify right side
    78,348.97x = 2,940,918,266.17
  5. Step 5: Solve for x
    x = 2,940,918,266.17/78,348.97
  6. Step 6: Final answer
    x = 37,536.14

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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.