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Finding the Fourth Proportional to 14,668.08, 22,005 and 4,279.92

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Solution

The fourth proportional to 14,668.08, 22,005 and 4,279.92 is: 6,420.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,668.08 : 22,005 = 4,279.92 : x
  2. Step 2: Convert to fraction form
    14,668.08/22,005 = 4,279.92/x
  3. Step 3: Cross multiply
    14,668.08x = 22,005 × 4,279.92
  4. Step 4: Simplify right side
    14,668.08x = 94,179,639.60
  5. Step 5: Solve for x
    x = 94,179,639.60/14,668.08
  6. Step 6: Final answer
    x = 6,420.72

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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.