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Finding the Fourth Proportional to 32,400.97, 48,601.45 and 7,776.97

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Solution

The fourth proportional to 32,400.97, 48,601.45 and 7,776.97 is: 11,665.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,400.97 : 48,601.45 = 7,776.97 : x
  2. Step 2: Convert to fraction form
    32,400.97/48,601.45 = 7,776.97/x
  3. Step 3: Cross multiply
    32,400.97x = 48,601.45 × 7,776.97
  4. Step 4: Simplify right side
    32,400.97x = 377,971,987.02
  5. Step 5: Solve for x
    x = 377,971,987.02/32,400.97
  6. Step 6: Final answer
    x = 11,665.45

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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.