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Finding the Fourth Proportional to 56,244.65, 84,337.74 and 20,696.99

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Solution

The fourth proportional to 56,244.65, 84,337.74 and 20,696.99 is: 31,034.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,244.65 : 84,337.74 = 20,696.99 : x
  2. Step 2: Convert to fraction form
    56,244.65/84,337.74 = 20,696.99/x
  3. Step 3: Cross multiply
    56,244.65x = 84,337.74 × 20,696.99
  4. Step 4: Simplify right side
    56,244.65x = 1,745,536,939.71
  5. Step 5: Solve for x
    x = 1,745,536,939.71/56,244.65
  6. Step 6: Final answer
    x = 31,034.72

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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.