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Finding the Fourth Proportional to 70,382.96, 97,130.85 and 38,553.65

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Solution

The fourth proportional to 70,382.96, 97,130.85 and 38,553.65 is: 53,205.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,382.96 : 97,130.85 = 38,553.65 : x
  2. Step 2: Convert to fraction form
    70,382.96/97,130.85 = 38,553.65/x
  3. Step 3: Cross multiply
    70,382.96x = 97,130.85 × 38,553.65
  4. Step 4: Simplify right side
    70,382.96x = 3,744,748,795.10
  5. Step 5: Solve for x
    x = 3,744,748,795.10/70,382.96
  6. Step 6: Final answer
    x = 53,205.33

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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.