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Finding the Fourth Proportional to 60,813.02, 91,218.90 and 19,260.02

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Solution

The fourth proportional to 60,813.02, 91,218.90 and 19,260.02 is: 28,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,813.02 : 91,218.90 = 19,260.02 : x
  2. Step 2: Convert to fraction form
    60,813.02/91,218.90 = 19,260.02/x
  3. Step 3: Cross multiply
    60,813.02x = 91,218.90 × 19,260.02
  4. Step 4: Simplify right side
    60,813.02x = 1,756,877,838.38
  5. Step 5: Solve for x
    x = 1,756,877,838.38/60,813.02
  6. Step 6: Final answer
    x = 28,889.83

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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.