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Finding the Fourth Proportional to 8,488.65, 12,732.98 and 6,184.65

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Solution

The fourth proportional to 8,488.65, 12,732.98 and 6,184.65 is: 9,276.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.65 : 12,732.98 = 6,184.65 : x
  2. Step 2: Convert to fraction form
    8,488.65/12,732.98 = 6,184.65/x
  3. Step 3: Cross multiply
    8,488.65x = 12,732.98 × 6,184.65
  4. Step 4: Simplify right side
    8,488.65x = 78,748,993.83
  5. Step 5: Solve for x
    x = 78,748,993.83/8,488.65
  6. Step 6: Final answer
    x = 9,276.98

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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.