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Finding the Fourth Proportional to 8,871.86, 12,243.24 and 4,893.12

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Solution

The fourth proportional to 8,871.86, 12,243.24 and 4,893.12 is: 6,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.86 : 12,243.24 = 4,893.12 : x
  2. Step 2: Convert to fraction form
    8,871.86/12,243.24 = 4,893.12/x
  3. Step 3: Cross multiply
    8,871.86x = 12,243.24 × 4,893.12
  4. Step 4: Simplify right side
    8,871.86x = 59,907,642.51
  5. Step 5: Solve for x
    x = 59,907,642.51/8,871.86
  6. Step 6: Final answer
    x = 6,752.55

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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.