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Finding the Fourth Proportional to 71,807.04, 98,990.82 and 50,520.24

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Solution

The fourth proportional to 71,807.04, 98,990.82 and 50,520.24 is: 69,645.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,807.04 : 98,990.82 = 50,520.24 : x
  2. Step 2: Convert to fraction form
    71,807.04/98,990.82 = 50,520.24/x
  3. Step 3: Cross multiply
    71,807.04x = 98,990.82 × 50,520.24
  4. Step 4: Simplify right side
    71,807.04x = 5,001,039,984.20
  5. Step 5: Solve for x
    x = 5,001,039,984.20/71,807.04
  6. Step 6: Final answer
    x = 69,645.54

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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.