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Finding the Fourth Proportional to 60,594.40, 90,933.12 and 21,151.51

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Solution

The fourth proportional to 60,594.40, 90,933.12 and 21,151.51 is: 31,741.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,594.40 : 90,933.12 = 21,151.51 : x
  2. Step 2: Convert to fraction form
    60,594.40/90,933.12 = 21,151.51/x
  3. Step 3: Cross multiply
    60,594.40x = 90,933.12 × 21,151.51
  4. Step 4: Simplify right side
    60,594.40x = 1,923,372,797.01
  5. Step 5: Solve for x
    x = 1,923,372,797.01/60,594.40
  6. Step 6: Final answer
    x = 31,741.76

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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.