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Finding the Fourth Proportional to 10,728.24, 14,805.67 and 5,948.39

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Solution

The fourth proportional to 10,728.24, 14,805.67 and 5,948.39 is: 8,209.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.24 : 14,805.67 = 5,948.39 : x
  2. Step 2: Convert to fraction form
    10,728.24/14,805.67 = 5,948.39/x
  3. Step 3: Cross multiply
    10,728.24x = 14,805.67 × 5,948.39
  4. Step 4: Simplify right side
    10,728.24x = 88,069,932.67
  5. Step 5: Solve for x
    x = 88,069,932.67/10,728.24
  6. Step 6: Final answer
    x = 8,209.17

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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.