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Finding the Fourth Proportional to 25,887.74, 38,831.20 and 8,358.93

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Solution

The fourth proportional to 25,887.74, 38,831.20 and 8,358.93 is: 12,538.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,887.74 : 38,831.20 = 8,358.93 : x
  2. Step 2: Convert to fraction form
    25,887.74/38,831.20 = 8,358.93/x
  3. Step 3: Cross multiply
    25,887.74x = 38,831.20 × 8,358.93
  4. Step 4: Simplify right side
    25,887.74x = 324,587,261.72
  5. Step 5: Solve for x
    x = 324,587,261.72/25,887.74
  6. Step 6: Final answer
    x = 12,538.26

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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.