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Finding the Fourth Proportional to 51,472.60, 77,201.70 and 16,415.80

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Solution

The fourth proportional to 51,472.60, 77,201.70 and 16,415.80 is: 24,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,472.60 : 77,201.70 = 16,415.80 : x
  2. Step 2: Convert to fraction form
    51,472.60/77,201.70 = 16,415.80/x
  3. Step 3: Cross multiply
    51,472.60x = 77,201.70 × 16,415.80
  4. Step 4: Simplify right side
    51,472.60x = 1,267,327,666.86
  5. Step 5: Solve for x
    x = 1,267,327,666.86/51,472.60
  6. Step 6: Final answer
    x = 24,621.40

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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.