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Finding the Fourth Proportional to 73,447.50, 110,205.81 and 38,403.66

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Solution

The fourth proportional to 73,447.50, 110,205.81 and 38,403.66 is: 57,623.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,447.50 : 110,205.81 = 38,403.66 : x
  2. Step 2: Convert to fraction form
    73,447.50/110,205.81 = 38,403.66/x
  3. Step 3: Cross multiply
    73,447.50x = 110,205.81 × 38,403.66
  4. Step 4: Simplify right side
    73,447.50x = 4,232,306,457.26
  5. Step 5: Solve for x
    x = 4,232,306,457.26/73,447.50
  6. Step 6: Final answer
    x = 57,623.56

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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.