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Finding the Fourth Proportional to 8,854.63, 13,281.90 and 3,589.56

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Solution

The fourth proportional to 8,854.63, 13,281.90 and 3,589.56 is: 5,384.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.63 : 13,281.90 = 3,589.56 : x
  2. Step 2: Convert to fraction form
    8,854.63/13,281.90 = 3,589.56/x
  3. Step 3: Cross multiply
    8,854.63x = 13,281.90 × 3,589.56
  4. Step 4: Simplify right side
    8,854.63x = 47,676,210.17
  5. Step 5: Solve for x
    x = 47,676,210.17/8,854.63
  6. Step 6: Final answer
    x = 5,384.33

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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.