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Finding the Fourth Proportional to 56,302.57, 84,478.57 and 21,234.02

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Solution

The fourth proportional to 56,302.57, 84,478.57 and 21,234.02 is: 31,860.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,302.57 : 84,478.57 = 21,234.02 : x
  2. Step 2: Convert to fraction form
    56,302.57/84,478.57 = 21,234.02/x
  3. Step 3: Cross multiply
    56,302.57x = 84,478.57 × 21,234.02
  4. Step 4: Simplify right side
    56,302.57x = 1,793,819,941.98
  5. Step 5: Solve for x
    x = 1,793,819,941.98/56,302.57
  6. Step 6: Final answer
    x = 31,860.36

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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.