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Finding the Fourth Proportional to 11,306.66, 15,603.72 and 7,060.24

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Solution

The fourth proportional to 11,306.66, 15,603.72 and 7,060.24 is: 9,743.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,306.66 : 15,603.72 = 7,060.24 : x
  2. Step 2: Convert to fraction form
    11,306.66/15,603.72 = 7,060.24/x
  3. Step 3: Cross multiply
    11,306.66x = 15,603.72 × 7,060.24
  4. Step 4: Simplify right side
    11,306.66x = 110,165,930.07
  5. Step 5: Solve for x
    x = 110,165,930.07/11,306.66
  6. Step 6: Final answer
    x = 9,743.45

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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.