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Finding the Fourth Proportional to 63,009.99, 94,482.86 and 20,874.87

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Solution

The fourth proportional to 63,009.99, 94,482.86 and 20,874.87 is: 31,301.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,009.99 : 94,482.86 = 20,874.87 : x
  2. Step 2: Convert to fraction form
    63,009.99/94,482.86 = 20,874.87/x
  3. Step 3: Cross multiply
    63,009.99x = 94,482.86 × 20,874.87
  4. Step 4: Simplify right side
    63,009.99x = 1,972,317,315.35
  5. Step 5: Solve for x
    x = 1,972,317,315.35/63,009.99
  6. Step 6: Final answer
    x = 31,301.66

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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.