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Finding the Fourth Proportional to 25,800.81, 38,700.41 and 7,332.81

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Solution

The fourth proportional to 25,800.81, 38,700.41 and 7,332.81 is: 10,998.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,800.81 : 38,700.41 = 7,332.81 : x
  2. Step 2: Convert to fraction form
    25,800.81/38,700.41 = 7,332.81/x
  3. Step 3: Cross multiply
    25,800.81x = 38,700.41 × 7,332.81
  4. Step 4: Simplify right side
    25,800.81x = 283,782,716.79
  5. Step 5: Solve for x
    x = 283,782,716.79/25,800.81
  6. Step 6: Final answer
    x = 10,998.98

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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.