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Finding the Fourth Proportional to 61,809.69, 85,299.03 and 34,956.18

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Solution

The fourth proportional to 61,809.69, 85,299.03 and 34,956.18 is: 48,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,809.69 : 85,299.03 = 34,956.18 : x
  2. Step 2: Convert to fraction form
    61,809.69/85,299.03 = 34,956.18/x
  3. Step 3: Cross multiply
    61,809.69x = 85,299.03 × 34,956.18
  4. Step 4: Simplify right side
    61,809.69x = 2,981,728,246.51
  5. Step 5: Solve for x
    x = 2,981,728,246.51/61,809.69
  6. Step 6: Final answer
    x = 48,240.47

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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.