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Finding the Fourth Proportional to 8,597.32, 12,870.06 and 6,290.44

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Solution

The fourth proportional to 8,597.32, 12,870.06 and 6,290.44 is: 9,416.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,597.32 : 12,870.06 = 6,290.44 : x
  2. Step 2: Convert to fraction form
    8,597.32/12,870.06 = 6,290.44/x
  3. Step 3: Cross multiply
    8,597.32x = 12,870.06 × 6,290.44
  4. Step 4: Simplify right side
    8,597.32x = 80,958,340.23
  5. Step 5: Solve for x
    x = 80,958,340.23/8,597.32
  6. Step 6: Final answer
    x = 9,416.69

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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.