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Finding the Fourth Proportional to 70,882.20, 97,821.86 and 39,051.10

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Solution

The fourth proportional to 70,882.20, 97,821.86 and 39,051.10 is: 53,892.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,882.20 : 97,821.86 = 39,051.10 : x
  2. Step 2: Convert to fraction form
    70,882.20/97,821.86 = 39,051.10/x
  3. Step 3: Cross multiply
    70,882.20x = 97,821.86 × 39,051.10
  4. Step 4: Simplify right side
    70,882.20x = 3,820,051,237.05
  5. Step 5: Solve for x
    x = 3,820,051,237.05/70,882.20
  6. Step 6: Final answer
    x = 53,892.96

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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.