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Finding the Fourth Proportional to 9,005.92, 12,440.16 and 7,244.16

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Solution

The fourth proportional to 9,005.92, 12,440.16 and 7,244.16 is: 10,006.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,005.92 : 12,440.16 = 7,244.16 : x
  2. Step 2: Convert to fraction form
    9,005.92/12,440.16 = 7,244.16/x
  3. Step 3: Cross multiply
    9,005.92x = 12,440.16 × 7,244.16
  4. Step 4: Simplify right side
    9,005.92x = 90,118,509.47
  5. Step 5: Solve for x
    x = 90,118,509.47/9,005.92
  6. Step 6: Final answer
    x = 10,006.59

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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.