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Finding the Fourth Proportional to 8,775.65, 13,151.80 and 4,326.53

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Solution

The fourth proportional to 8,775.65, 13,151.80 and 4,326.53 is: 6,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.65 : 13,151.80 = 4,326.53 : x
  2. Step 2: Convert to fraction form
    8,775.65/13,151.80 = 4,326.53/x
  3. Step 3: Cross multiply
    8,775.65x = 13,151.80 × 4,326.53
  4. Step 4: Simplify right side
    8,775.65x = 56,901,596.90
  5. Step 5: Solve for x
    x = 56,901,596.90/8,775.65
  6. Step 6: Final answer
    x = 6,484.03

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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.