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Finding the Fourth Proportional to 56,428.57, 84,569.96 and 26,855.47

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Solution

The fourth proportional to 56,428.57, 84,569.96 and 26,855.47 is: 40,248.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,428.57 : 84,569.96 = 26,855.47 : x
  2. Step 2: Convert to fraction form
    56,428.57/84,569.96 = 26,855.47/x
  3. Step 3: Cross multiply
    56,428.57x = 84,569.96 × 26,855.47
  4. Step 4: Simplify right side
    56,428.57x = 2,271,165,889.40
  5. Step 5: Solve for x
    x = 2,271,165,889.40/56,428.57
  6. Step 6: Final answer
    x = 40,248.51

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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.