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Finding the Fourth Proportional to 9,373.86, 12,918.13 and 6,716.66

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Solution

The fourth proportional to 9,373.86, 12,918.13 and 6,716.66 is: 9,256.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,373.86 : 12,918.13 = 6,716.66 : x
  2. Step 2: Convert to fraction form
    9,373.86/12,918.13 = 6,716.66/x
  3. Step 3: Cross multiply
    9,373.86x = 12,918.13 × 6,716.66
  4. Step 4: Simplify right side
    9,373.86x = 86,766,605.66
  5. Step 5: Solve for x
    x = 86,766,605.66/9,373.86
  6. Step 6: Final answer
    x = 9,256.23

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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.