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Finding the Fourth Proportional to 61,097.31, 84,313.53 and 34,239.78

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Solution

The fourth proportional to 61,097.31, 84,313.53 and 34,239.78 is: 47,250.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,097.31 : 84,313.53 = 34,239.78 : x
  2. Step 2: Convert to fraction form
    61,097.31/84,313.53 = 34,239.78/x
  3. Step 3: Cross multiply
    61,097.31x = 84,313.53 × 34,239.78
  4. Step 4: Simplify right side
    61,097.31x = 2,886,876,718.22
  5. Step 5: Solve for x
    x = 2,886,876,718.22/61,097.31
  6. Step 6: Final answer
    x = 47,250.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.