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Finding the Fourth Proportional to 8,805.88, 12,144.36 and 5,448.16

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Solution

The fourth proportional to 8,805.88, 12,144.36 and 5,448.16 is: 7,513.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.88 : 12,144.36 = 5,448.16 : x
  2. Step 2: Convert to fraction form
    8,805.88/12,144.36 = 5,448.16/x
  3. Step 3: Cross multiply
    8,805.88x = 12,144.36 × 5,448.16
  4. Step 4: Simplify right side
    8,805.88x = 66,164,416.38
  5. Step 5: Solve for x
    x = 66,164,416.38/8,805.88
  6. Step 6: Final answer
    x = 7,513.66

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Half 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.