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Finding the Fourth Proportional to 61,146.70, 91,719.51 and 19,593.70

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Solution

The fourth proportional to 61,146.70, 91,719.51 and 19,593.70 is: 29,390.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,146.70 : 91,719.51 = 19,593.70 : x
  2. Step 2: Convert to fraction form
    61,146.70/91,719.51 = 19,593.70/x
  3. Step 3: Cross multiply
    61,146.70x = 91,719.51 × 19,593.70
  4. Step 4: Simplify right side
    61,146.70x = 1,797,124,563.09
  5. Step 5: Solve for x
    x = 1,797,124,563.09/61,146.70
  6. Step 6: Final answer
    x = 29,390.38

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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.