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Finding the Fourth Proportional to 51,995.60, 77,945.52 and 16,917.20

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Solution

The fourth proportional to 51,995.60, 77,945.52 and 16,917.20 is: 25,360.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,995.60 : 77,945.52 = 16,917.20 : x
  2. Step 2: Convert to fraction form
    51,995.60/77,945.52 = 16,917.20/x
  3. Step 3: Cross multiply
    51,995.60x = 77,945.52 × 16,917.20
  4. Step 4: Simplify right side
    51,995.60x = 1,318,619,950.94
  5. Step 5: Solve for x
    x = 1,318,619,950.94/51,995.60
  6. Step 6: Final answer
    x = 25,360.22

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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.