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Finding the Fourth Proportional to 42,600.99, 63,879.05 and 22,621.68

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Solution

The fourth proportional to 42,600.99, 63,879.05 and 22,621.68 is: 33,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,600.99 : 63,879.05 = 22,621.68 : x
  2. Step 2: Convert to fraction form
    42,600.99/63,879.05 = 22,621.68/x
  3. Step 3: Cross multiply
    42,600.99x = 63,879.05 × 22,621.68
  4. Step 4: Simplify right side
    42,600.99x = 1,445,051,314.70
  5. Step 5: Solve for x
    x = 1,445,051,314.70/42,600.99
  6. Step 6: Final answer
    x = 33,920.60

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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.