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Finding the Fourth Proportional to 8,575.88, 11,826.03 and 5,215.42

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Solution

The fourth proportional to 8,575.88, 11,826.03 and 5,215.42 is: 7,192.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.88 : 11,826.03 = 5,215.42 : x
  2. Step 2: Convert to fraction form
    8,575.88/11,826.03 = 5,215.42/x
  3. Step 3: Cross multiply
    8,575.88x = 11,826.03 × 5,215.42
  4. Step 4: Simplify right side
    8,575.88x = 61,677,713.38
  5. Step 5: Solve for x
    x = 61,677,713.38/8,575.88
  6. Step 6: Final answer
    x = 7,192.00

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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.