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Finding the Fourth Proportional to 56,662.74, 78,178.70 and 36,531.41

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Solution

The fourth proportional to 56,662.74, 78,178.70 and 36,531.41 is: 50,403.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,662.74 : 78,178.70 = 36,531.41 : x
  2. Step 2: Convert to fraction form
    56,662.74/78,178.70 = 36,531.41/x
  3. Step 3: Cross multiply
    56,662.74x = 78,178.70 × 36,531.41
  4. Step 4: Simplify right side
    56,662.74x = 2,855,977,843.40
  5. Step 5: Solve for x
    x = 2,855,977,843.40/56,662.74
  6. Step 6: Final answer
    x = 50,403.10

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1.5x scale

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.