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Finding the Fourth Proportional to 61,453.60, 92,180.68 and 21,472.40

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Solution

The fourth proportional to 61,453.60, 92,180.68 and 21,472.40 is: 32,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,453.60 : 92,180.68 = 21,472.40 : x
  2. Step 2: Convert to fraction form
    61,453.60/92,180.68 = 21,472.40/x
  3. Step 3: Cross multiply
    61,453.60x = 92,180.68 × 21,472.40
  4. Step 4: Simplify right side
    61,453.60x = 1,979,340,433.23
  5. Step 5: Solve for x
    x = 1,979,340,433.23/61,453.60
  6. Step 6: Final answer
    x = 32,208.70

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1.5x scale

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.