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Finding the Fourth Proportional to 56,399.90, 77,862.06 and 36,002.48

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Solution

The fourth proportional to 56,399.90, 77,862.06 and 36,002.48 is: 49,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,399.90 : 77,862.06 = 36,002.48 : x
  2. Step 2: Convert to fraction form
    56,399.90/77,862.06 = 36,002.48/x
  3. Step 3: Cross multiply
    56,399.90x = 77,862.06 × 36,002.48
  4. Step 4: Simplify right side
    56,399.90x = 2,803,226,868.60
  5. Step 5: Solve for x
    x = 2,803,226,868.60/56,399.90
  6. Step 6: Final answer
    x = 49,702.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.