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Finding the Fourth Proportional to 60,877.52, 91,358.66 and 21,437.81

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Solution

The fourth proportional to 60,877.52, 91,358.66 and 21,437.81 is: 32,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,877.52 : 91,358.66 = 21,437.81 : x
  2. Step 2: Convert to fraction form
    60,877.52/91,358.66 = 21,437.81/x
  3. Step 3: Cross multiply
    60,877.52x = 91,358.66 × 21,437.81
  4. Step 4: Simplify right side
    60,877.52x = 1,958,529,594.93
  5. Step 5: Solve for x
    x = 1,958,529,594.93/60,877.52
  6. Step 6: Final answer
    x = 32,171.64

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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.