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Finding the Fourth Proportional to 15,980.76, 22,053.47 and 9,267.68

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Solution

The fourth proportional to 15,980.76, 22,053.47 and 9,267.68 is: 12,789.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980.76 : 22,053.47 = 9,267.68 : x
  2. Step 2: Convert to fraction form
    15,980.76/22,053.47 = 9,267.68/x
  3. Step 3: Cross multiply
    15,980.76x = 22,053.47 × 9,267.68
  4. Step 4: Simplify right side
    15,980.76x = 204,384,511.64
  5. Step 5: Solve for x
    x = 204,384,511.64/15,980.76
  6. Step 6: Final answer
    x = 12,789.41

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Half scale
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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.