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Finding the Fourth Proportional to 5,657.98, 8,479.64 and 3,159.10

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Solution

The fourth proportional to 5,657.98, 8,479.64 and 3,159.10 is: 4,734.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,657.98 : 8,479.64 = 3,159.10 : x
  2. Step 2: Convert to fraction form
    5,657.98/8,479.64 = 3,159.10/x
  3. Step 3: Cross multiply
    5,657.98x = 8,479.64 × 3,159.10
  4. Step 4: Simplify right side
    5,657.98x = 26,788,030.72
  5. Step 5: Solve for x
    x = 26,788,030.72/5,657.98
  6. Step 6: Final answer
    x = 4,734.56

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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.