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Finding the Fourth Proportional to 14,670, 22,005.18 and 5,436

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Solution

The fourth proportional to 14,670, 22,005.18 and 5,436 is: 8,154.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,670 : 22,005.18 = 5,436 : x
  2. Step 2: Convert to fraction form
    14,670/22,005.18 = 5,436/x
  3. Step 3: Cross multiply
    14,670x = 22,005.18 × 5,436
  4. Step 4: Simplify right side
    14,670x = 119,620,158.48
  5. Step 5: Solve for x
    x = 119,620,158.48/14,670
  6. Step 6: Final answer
    x = 8,154.07

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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.