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Finding the Fourth Proportional to 56,346.75, 84,549.29 and 28,644.75

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Solution

The fourth proportional to 56,346.75, 84,549.29 and 28,644.75 is: 42,981.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,346.75 : 84,549.29 = 28,644.75 : x
  2. Step 2: Convert to fraction form
    56,346.75/84,549.29 = 28,644.75/x
  3. Step 3: Cross multiply
    56,346.75x = 84,549.29 × 28,644.75
  4. Step 4: Simplify right side
    56,346.75x = 2,421,893,131.50
  5. Step 5: Solve for x
    x = 2,421,893,131.50/56,346.75
  6. Step 6: Final answer
    x = 42,981.95

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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.