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Finding the Fourth Proportional to 15,113, 22,670.78 and 4,169

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Solution

The fourth proportional to 15,113, 22,670.78 and 4,169 is: 6,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113 : 22,670.78 = 4,169 : x
  2. Step 2: Convert to fraction form
    15,113/22,670.78 = 4,169/x
  3. Step 3: Cross multiply
    15,113x = 22,670.78 × 4,169
  4. Step 4: Simplify right side
    15,113x = 94,514,481.82
  5. Step 5: Solve for x
    x = 94,514,481.82/15,113
  6. Step 6: Final answer
    x = 6,253.85

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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.