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Finding the Fourth Proportional to 56,572.80, 84,859.20 and 23,281.80

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Solution

The fourth proportional to 56,572.80, 84,859.20 and 23,281.80 is: 34,922.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,572.80 : 84,859.20 = 23,281.80 : x
  2. Step 2: Convert to fraction form
    56,572.80/84,859.20 = 23,281.80/x
  3. Step 3: Cross multiply
    56,572.80x = 84,859.20 × 23,281.80
  4. Step 4: Simplify right side
    56,572.80x = 1,975,674,922.56
  5. Step 5: Solve for x
    x = 1,975,674,922.56/56,572.80
  6. Step 6: Final answer
    x = 34,922.70

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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.