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Finding the Fourth Proportional to 82,871.40, 124,307.10 and 27,467.40

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Solution

The fourth proportional to 82,871.40, 124,307.10 and 27,467.40 is: 41,201.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,871.40 : 124,307.10 = 27,467.40 : x
  2. Step 2: Convert to fraction form
    82,871.40/124,307.10 = 27,467.40/x
  3. Step 3: Cross multiply
    82,871.40x = 124,307.10 × 27,467.40
  4. Step 4: Simplify right side
    82,871.40x = 3,414,392,838.54
  5. Step 5: Solve for x
    x = 3,414,392,838.54/82,871.40
  6. Step 6: Final answer
    x = 41,201.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.