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Finding the Fourth Proportional to 12,281.83, 16,948.18 and 7,247.63

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Solution

The fourth proportional to 12,281.83, 16,948.18 and 7,247.63 is: 10,001.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.83 : 16,948.18 = 7,247.63 : x
  2. Step 2: Convert to fraction form
    12,281.83/16,948.18 = 7,247.63/x
  3. Step 3: Cross multiply
    12,281.83x = 16,948.18 × 7,247.63
  4. Step 4: Simplify right side
    12,281.83x = 122,834,062.13
  5. Step 5: Solve for x
    x = 122,834,062.13/12,281.83
  6. Step 6: Final answer
    x = 10,001.29

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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.