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Finding the Fourth Proportional to 8,575.59, 11,834.64 and 4,990.26

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Solution

The fourth proportional to 8,575.59, 11,834.64 and 4,990.26 is: 6,886.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.59 : 11,834.64 = 4,990.26 : x
  2. Step 2: Convert to fraction form
    8,575.59/11,834.64 = 4,990.26/x
  3. Step 3: Cross multiply
    8,575.59x = 11,834.64 × 4,990.26
  4. Step 4: Simplify right side
    8,575.59x = 59,057,930.61
  5. Step 5: Solve for x
    x = 59,057,930.61/8,575.59
  6. Step 6: Final answer
    x = 6,886.75

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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.