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Finding the Fourth Proportional to 72,349.74, 108,561.66 and 34,441.91

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Solution

The fourth proportional to 72,349.74, 108,561.66 and 34,441.91 is: 51,680.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,349.74 : 108,561.66 = 34,441.91 : x
  2. Step 2: Convert to fraction form
    72,349.74/108,561.66 = 34,441.91/x
  3. Step 3: Cross multiply
    72,349.74x = 108,561.66 × 34,441.91
  4. Step 4: Simplify right side
    72,349.74x = 3,739,070,750.96
  5. Step 5: Solve for x
    x = 3,739,070,750.96/72,349.74
  6. Step 6: Final answer
    x = 51,680.50

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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.