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Finding the Fourth Proportional to 82,001.90, 122,905.65 and 34,616.90

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Solution

The fourth proportional to 82,001.90, 122,905.65 and 34,616.90 is: 51,884.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,001.90 : 122,905.65 = 34,616.90 : x
  2. Step 2: Convert to fraction form
    82,001.90/122,905.65 = 34,616.90/x
  3. Step 3: Cross multiply
    82,001.90x = 122,905.65 × 34,616.90
  4. Step 4: Simplify right side
    82,001.90x = 4,254,612,595.49
  5. Step 5: Solve for x
    x = 4,254,612,595.49/82,001.90
  6. Step 6: Final answer
    x = 51,884.32

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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.