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Finding the Fourth Proportional to 14,879.60, 22,299.77 and 6,980.88

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Solution

The fourth proportional to 14,879.60, 22,299.77 and 6,980.88 is: 10,462.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,879.60 : 22,299.77 = 6,980.88 : x
  2. Step 2: Convert to fraction form
    14,879.60/22,299.77 = 6,980.88/x
  3. Step 3: Cross multiply
    14,879.60x = 22,299.77 × 6,980.88
  4. Step 4: Simplify right side
    14,879.60x = 155,671,983.49
  5. Step 5: Solve for x
    x = 155,671,983.49/14,879.60
  6. Step 6: Final answer
    x = 10,462.11

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1.5x scale

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.