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Finding the Fourth Proportional to 7,469.13, 11,205.72 and 6,653.10

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Solution

The fourth proportional to 7,469.13, 11,205.72 and 6,653.10 is: 9,981.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,469.13 : 11,205.72 = 6,653.10 : x
  2. Step 2: Convert to fraction form
    7,469.13/11,205.72 = 6,653.10/x
  3. Step 3: Cross multiply
    7,469.13x = 11,205.72 × 6,653.10
  4. Step 4: Simplify right side
    7,469.13x = 74,552,775.73
  5. Step 5: Solve for x
    x = 74,552,775.73/7,469.13
  6. Step 6: Final answer
    x = 9,981.45

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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.