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Finding the Fourth Proportional to 9,992.62, 15,005.94 and 9,574.66

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Solution

The fourth proportional to 9,992.62, 15,005.94 and 9,574.66 is: 14,378.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.62 : 15,005.94 = 9,574.66 : x
  2. Step 2: Convert to fraction form
    9,992.62/15,005.94 = 9,574.66/x
  3. Step 3: Cross multiply
    9,992.62x = 15,005.94 × 9,574.66
  4. Step 4: Simplify right side
    9,992.62x = 143,676,773.48
  5. Step 5: Solve for x
    x = 143,676,773.48/9,992.62
  6. Step 6: Final answer
    x = 14,378.29

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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.