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Finding the Fourth Proportional to 73,591.58, 110,388.38 and 21,001.05

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Solution

The fourth proportional to 73,591.58, 110,388.38 and 21,001.05 is: 31,501.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,591.58 : 110,388.38 = 21,001.05 : x
  2. Step 2: Convert to fraction form
    73,591.58/110,388.38 = 21,001.05/x
  3. Step 3: Cross multiply
    73,591.58x = 110,388.38 × 21,001.05
  4. Step 4: Simplify right side
    73,591.58x = 2,318,271,782.79
  5. Step 5: Solve for x
    x = 2,318,271,782.79/73,591.58
  6. Step 6: Final answer
    x = 31,501.86

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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.