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Finding the Fourth Proportional to 3,560.76, 5,337.16 and 1,218.58

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Solution

The fourth proportional to 3,560.76, 5,337.16 and 1,218.58 is: 1,826.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,560.76 : 5,337.16 = 1,218.58 : x
  2. Step 2: Convert to fraction form
    3,560.76/5,337.16 = 1,218.58/x
  3. Step 3: Cross multiply
    3,560.76x = 5,337.16 × 1,218.58
  4. Step 4: Simplify right side
    3,560.76x = 6,503,740.04
  5. Step 5: Solve for x
    x = 6,503,740.04/3,560.76
  6. Step 6: Final answer
    x = 1,826.50

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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.