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Finding the Fourth Proportional to 10,790.39, 14,894.92 and 8,433.29

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Solution

The fourth proportional to 10,790.39, 14,894.92 and 8,433.29 is: 11,641.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.39 : 14,894.92 = 8,433.29 : x
  2. Step 2: Convert to fraction form
    10,790.39/14,894.92 = 8,433.29/x
  3. Step 3: Cross multiply
    10,790.39x = 14,894.92 × 8,433.29
  4. Step 4: Simplify right side
    10,790.39x = 125,613,227.67
  5. Step 5: Solve for x
    x = 125,613,227.67/10,790.39
  6. Step 6: Final answer
    x = 11,641.21

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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.