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Finding the Fourth Proportional to 61,085.92, 91,622.16 and 19,527.52

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Solution

The fourth proportional to 61,085.92, 91,622.16 and 19,527.52 is: 29,289.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,085.92 : 91,622.16 = 19,527.52 : x
  2. Step 2: Convert to fraction form
    61,085.92/91,622.16 = 19,527.52/x
  3. Step 3: Cross multiply
    61,085.92x = 91,622.16 × 19,527.52
  4. Step 4: Simplify right side
    61,085.92x = 1,789,153,561.84
  5. Step 5: Solve for x
    x = 1,789,153,561.84/61,085.92
  6. Step 6: Final answer
    x = 29,289.13

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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.