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Finding the Fourth Proportional to 8,451.32, 12,655.38 and 5,859.32

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Solution

The fourth proportional to 8,451.32, 12,655.38 and 5,859.32 is: 8,774.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.32 : 12,655.38 = 5,859.32 : x
  2. Step 2: Convert to fraction form
    8,451.32/12,655.38 = 5,859.32/x
  3. Step 3: Cross multiply
    8,451.32x = 12,655.38 × 5,859.32
  4. Step 4: Simplify right side
    8,451.32x = 74,151,921.14
  5. Step 5: Solve for x
    x = 74,151,921.14/8,451.32
  6. Step 6: Final answer
    x = 8,774.00

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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.