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Finding the Fourth Proportional to 51,988.60, 77,935.02 and 16,910.20

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Solution

The fourth proportional to 51,988.60, 77,935.02 and 16,910.20 is: 25,349.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.60 : 77,935.02 = 16,910.20 : x
  2. Step 2: Convert to fraction form
    51,988.60/77,935.02 = 16,910.20/x
  3. Step 3: Cross multiply
    51,988.60x = 77,935.02 × 16,910.20
  4. Step 4: Simplify right side
    51,988.60x = 1,317,896,775.20
  5. Step 5: Solve for x
    x = 1,317,896,775.20/51,988.60
  6. Step 6: Final answer
    x = 25,349.73

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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.