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Finding the Fourth Proportional to 20,393.66, 30,590.13 and 5,602.52

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Solution

The fourth proportional to 20,393.66, 30,590.13 and 5,602.52 is: 8,403.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393.66 : 30,590.13 = 5,602.52 : x
  2. Step 2: Convert to fraction form
    20,393.66/30,590.13 = 5,602.52/x
  3. Step 3: Cross multiply
    20,393.66x = 30,590.13 × 5,602.52
  4. Step 4: Simplify right side
    20,393.66x = 171,381,815.13
  5. Step 5: Solve for x
    x = 171,381,815.13/20,393.66
  6. Step 6: Final answer
    x = 8,403.68

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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.