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Finding the Fourth Proportional to 14,712.58, 20,303.50 and 7,998.22

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Solution

The fourth proportional to 14,712.58, 20,303.50 and 7,998.22 is: 11,037.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,712.58 : 20,303.50 = 7,998.22 : x
  2. Step 2: Convert to fraction form
    14,712.58/20,303.50 = 7,998.22/x
  3. Step 3: Cross multiply
    14,712.58x = 20,303.50 × 7,998.22
  4. Step 4: Simplify right side
    14,712.58x = 162,391,819.78
  5. Step 5: Solve for x
    x = 162,391,819.78/14,712.58
  6. Step 6: Final answer
    x = 11,037.62

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.