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Finding the Fourth Proportional to 8,773.43, 12,117.39 and 6,394.01

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Solution

The fourth proportional to 8,773.43, 12,117.39 and 6,394.01 is: 8,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.43 : 12,117.39 = 6,394.01 : x
  2. Step 2: Convert to fraction form
    8,773.43/12,117.39 = 6,394.01/x
  3. Step 3: Cross multiply
    8,773.43x = 12,117.39 × 6,394.01
  4. Step 4: Simplify right side
    8,773.43x = 77,478,628.27
  5. Step 5: Solve for x
    x = 77,478,628.27/8,773.43
  6. Step 6: Final answer
    x = 8,831.06

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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.