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Finding the Fourth Proportional to 8,871.34, 12,242.13 and 4,892.22

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Solution

The fourth proportional to 8,871.34, 12,242.13 and 4,892.22 is: 6,751.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.34 : 12,242.13 = 4,892.22 : x
  2. Step 2: Convert to fraction form
    8,871.34/12,242.13 = 4,892.22/x
  3. Step 3: Cross multiply
    8,871.34x = 12,242.13 × 4,892.22
  4. Step 4: Simplify right side
    8,871.34x = 59,891,193.23
  5. Step 5: Solve for x
    x = 59,891,193.23/8,871.34
  6. Step 6: Final answer
    x = 6,751.09

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Half scale
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Double scale
Find fourth proportional to 8,872.34, 12,243.51 and 4,893.22
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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.