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Finding the Fourth Proportional to 9,906.70, 14,859.51 and 3,332.20

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Solution

The fourth proportional to 9,906.70, 14,859.51 and 3,332.20 is: 4,998.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906.70 : 14,859.51 = 3,332.20 : x
  2. Step 2: Convert to fraction form
    9,906.70/14,859.51 = 3,332.20/x
  3. Step 3: Cross multiply
    9,906.70x = 14,859.51 × 3,332.20
  4. Step 4: Simplify right side
    9,906.70x = 49,514,859.22
  5. Step 5: Solve for x
    x = 49,514,859.22/9,906.70
  6. Step 6: Final answer
    x = 4,998.12

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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.