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Finding the Fourth Proportional to 9,997.61, 14,992.53 and 3,332.81

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Solution

The fourth proportional to 9,997.61, 14,992.53 and 3,332.81 is: 4,997.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.61 : 14,992.53 = 3,332.81 : x
  2. Step 2: Convert to fraction form
    9,997.61/14,992.53 = 3,332.81/x
  3. Step 3: Cross multiply
    9,997.61x = 14,992.53 × 3,332.81
  4. Step 4: Simplify right side
    9,997.61x = 49,967,178.95
  5. Step 5: Solve for x
    x = 49,967,178.95/9,997.61
  6. Step 6: Final answer
    x = 4,997.91

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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.