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Finding the Fourth Proportional to 35,061.80, 48,379.62 and 20,154.92

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Solution

The fourth proportional to 35,061.80, 48,379.62 and 20,154.92 is: 27,810.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,061.80 : 48,379.62 = 20,154.92 : x
  2. Step 2: Convert to fraction form
    35,061.80/48,379.62 = 20,154.92/x
  3. Step 3: Cross multiply
    35,061.80x = 48,379.62 × 20,154.92
  4. Step 4: Simplify right side
    35,061.80x = 975,087,370.73
  5. Step 5: Solve for x
    x = 975,087,370.73/35,061.80
  6. Step 6: Final answer
    x = 27,810.53

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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.