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Finding the Fourth Proportional to 11,348.76, 15,662.58 and 6,632.76

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Solution

The fourth proportional to 11,348.76, 15,662.58 and 6,632.76 is: 9,153.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,348.76 : 15,662.58 = 6,632.76 : x
  2. Step 2: Convert to fraction form
    11,348.76/15,662.58 = 6,632.76/x
  3. Step 3: Cross multiply
    11,348.76x = 15,662.58 × 6,632.76
  4. Step 4: Simplify right side
    11,348.76x = 103,886,134.12
  5. Step 5: Solve for x
    x = 103,886,134.12/11,348.76
  6. Step 6: Final answer
    x = 9,153.96

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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.