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Finding the Fourth Proportional to 9,328.86, 12,873.87 and 5,079.93

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Solution

The fourth proportional to 9,328.86, 12,873.87 and 5,079.93 is: 7,010.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.86 : 12,873.87 = 5,079.93 : x
  2. Step 2: Convert to fraction form
    9,328.86/12,873.87 = 5,079.93/x
  3. Step 3: Cross multiply
    9,328.86x = 12,873.87 × 5,079.93
  4. Step 4: Simplify right side
    9,328.86x = 65,398,358.43
  5. Step 5: Solve for x
    x = 65,398,358.43/9,328.86
  6. Step 6: Final answer
    x = 7,010.33

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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.