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Finding the Fourth Proportional to 20,319.00, 28,050.00 and 13,524.33

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Solution

The fourth proportional to 20,319.00, 28,050.00 and 13,524.33 is: 18,670.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.00 : 28,050.00 = 13,524.33 : x
  2. Step 2: Convert to fraction form
    20,319.00/28,050.00 = 13,524.33/x
  3. Step 3: Cross multiply
    20,319.00x = 28,050.00 × 13,524.33
  4. Step 4: Simplify right side
    20,319.00x = 379,357,404.92
  5. Step 5: Solve for x
    x = 379,357,404.92/20,319.00
  6. Step 6: Final answer
    x = 18,670.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.