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Finding the Fourth Proportional to 56,219.70, 84,329.55 and 47,763.30

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Solution

The fourth proportional to 56,219.70, 84,329.55 and 47,763.30 is: 71,644.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,219.70 : 84,329.55 = 47,763.30 : x
  2. Step 2: Convert to fraction form
    56,219.70/84,329.55 = 47,763.30/x
  3. Step 3: Cross multiply
    56,219.70x = 84,329.55 × 47,763.30
  4. Step 4: Simplify right side
    56,219.70x = 4,027,857,595.52
  5. Step 5: Solve for x
    x = 4,027,857,595.52/56,219.70
  6. Step 6: Final answer
    x = 71,644.95

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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.