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Finding the Fourth Proportional to 8,573.62, 12,860.93 and 3,308.65

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Solution

The fourth proportional to 8,573.62, 12,860.93 and 3,308.65 is: 4,963.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.62 : 12,860.93 = 3,308.65 : x
  2. Step 2: Convert to fraction form
    8,573.62/12,860.93 = 3,308.65/x
  3. Step 3: Cross multiply
    8,573.62x = 12,860.93 × 3,308.65
  4. Step 4: Simplify right side
    8,573.62x = 42,552,345.90
  5. Step 5: Solve for x
    x = 42,552,345.90/8,573.62
  6. Step 6: Final answer
    x = 4,963.17

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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.