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Finding the Fourth Proportional to 52,566.71, 78,803.17 and 19,278.99

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Solution

The fourth proportional to 52,566.71, 78,803.17 and 19,278.99 is: 28,901.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,566.71 : 78,803.17 = 19,278.99 : x
  2. Step 2: Convert to fraction form
    52,566.71/78,803.17 = 19,278.99/x
  3. Step 3: Cross multiply
    52,566.71x = 78,803.17 × 19,278.99
  4. Step 4: Simplify right side
    52,566.71x = 1,519,245,478.20
  5. Step 5: Solve for x
    x = 1,519,245,478.20/52,566.71
  6. Step 6: Final answer
    x = 28,901.29

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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.