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Finding the Fourth Proportional to 8,308.77, 12,470.45 and 4,615.17

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Solution

The fourth proportional to 8,308.77, 12,470.45 and 4,615.17 is: 6,926.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.77 : 12,470.45 = 4,615.17 : x
  2. Step 2: Convert to fraction form
    8,308.77/12,470.45 = 4,615.17/x
  3. Step 3: Cross multiply
    8,308.77x = 12,470.45 × 4,615.17
  4. Step 4: Simplify right side
    8,308.77x = 57,553,223.65
  5. Step 5: Solve for x
    x = 57,553,223.65/8,308.77
  6. Step 6: Final answer
    x = 6,926.80

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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.