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Finding the Fourth Proportional to 52,520.40, 78,857.40 and 37,006.80

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Solution

The fourth proportional to 52,520.40, 78,857.40 and 37,006.80 is: 55,564.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,520.40 : 78,857.40 = 37,006.80 : x
  2. Step 2: Convert to fraction form
    52,520.40/78,857.40 = 37,006.80/x
  3. Step 3: Cross multiply
    52,520.40x = 78,857.40 × 37,006.80
  4. Step 4: Simplify right side
    52,520.40x = 2,918,260,030.32
  5. Step 5: Solve for x
    x = 2,918,260,030.32/52,520.40
  6. Step 6: Final answer
    x = 55,564.31

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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.