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Finding the Fourth Proportional to 25,393.32, 38,079.12 and 7,859.04

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Solution

The fourth proportional to 25,393.32, 38,079.12 and 7,859.04 is: 11,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,393.32 : 38,079.12 = 7,859.04 : x
  2. Step 2: Convert to fraction form
    25,393.32/38,079.12 = 7,859.04/x
  3. Step 3: Cross multiply
    25,393.32x = 38,079.12 × 7,859.04
  4. Step 4: Simplify right side
    25,393.32x = 299,265,327.24
  5. Step 5: Solve for x
    x = 299,265,327.24/25,393.32
  6. Step 6: Final answer
    x = 11,785.20

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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.