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Finding the Fourth Proportional to 25,888.42, 38,831.23 and 8,358.25

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Solution

The fourth proportional to 25,888.42, 38,831.23 and 8,358.25 is: 12,536.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,888.42 : 38,831.23 = 8,358.25 : x
  2. Step 2: Convert to fraction form
    25,888.42/38,831.23 = 8,358.25/x
  3. Step 3: Cross multiply
    25,888.42x = 38,831.23 × 8,358.25
  4. Step 4: Simplify right side
    25,888.42x = 324,561,128.15
  5. Step 5: Solve for x
    x = 324,561,128.15/25,888.42
  6. Step 6: Final answer
    x = 12,536.92

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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.