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Finding the Fourth Proportional to 52,338.71, 78,461.28 and 19,035.30

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Solution

The fourth proportional to 52,338.71, 78,461.28 and 19,035.30 is: 28,535.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,338.71 : 78,461.28 = 19,035.30 : x
  2. Step 2: Convert to fraction form
    52,338.71/78,461.28 = 19,035.30/x
  3. Step 3: Cross multiply
    52,338.71x = 78,461.28 × 19,035.30
  4. Step 4: Simplify right side
    52,338.71x = 1,493,534,003.18
  5. Step 5: Solve for x
    x = 1,493,534,003.18/52,338.71
  6. Step 6: Final answer
    x = 28,535.94

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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.