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Finding the Fourth Proportional to 55,993.83, 83,981.03 and 20,926.23

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Solution

The fourth proportional to 55,993.83, 83,981.03 and 20,926.23 is: 31,385.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,993.83 : 83,981.03 = 20,926.23 : x
  2. Step 2: Convert to fraction form
    55,993.83/83,981.03 = 20,926.23/x
  3. Step 3: Cross multiply
    55,993.83x = 83,981.03 × 20,926.23
  4. Step 4: Simplify right side
    55,993.83x = 1,757,406,244.79
  5. Step 5: Solve for x
    x = 1,757,406,244.79/55,993.83
  6. Step 6: Final answer
    x = 31,385.71

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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.