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Finding the Fourth Proportional to 61,281.65, 91,927.78 and 16,908.41

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Solution

The fourth proportional to 61,281.65, 91,927.78 and 16,908.41 is: 25,364.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,281.65 : 91,927.78 = 16,908.41 : x
  2. Step 2: Convert to fraction form
    61,281.65/91,927.78 = 16,908.41/x
  3. Step 3: Cross multiply
    61,281.65x = 91,927.78 × 16,908.41
  4. Step 4: Simplify right side
    61,281.65x = 1,554,352,782.18
  5. Step 5: Solve for x
    x = 1,554,352,782.18/61,281.65
  6. Step 6: Final answer
    x = 25,364.08

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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.