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Finding the Fourth Proportional to 12,948.66, 17,851.07 and 10,951.20

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Solution

The fourth proportional to 12,948.66, 17,851.07 and 10,951.20 is: 15,097.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.66 : 17,851.07 = 10,951.20 : x
  2. Step 2: Convert to fraction form
    12,948.66/17,851.07 = 10,951.20/x
  3. Step 3: Cross multiply
    12,948.66x = 17,851.07 × 10,951.20
  4. Step 4: Simplify right side
    12,948.66x = 195,490,583.03
  5. Step 5: Solve for x
    x = 195,490,583.03/12,948.66
  6. Step 6: Final answer
    x = 15,097.36

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1.5x scale

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.