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Finding the Fourth Proportional to 27,055.92, 40,583.94 and 10,423.79

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Solution

The fourth proportional to 27,055.92, 40,583.94 and 10,423.79 is: 15,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,055.92 : 40,583.94 = 10,423.79 : x
  2. Step 2: Convert to fraction form
    27,055.92/40,583.94 = 10,423.79/x
  3. Step 3: Cross multiply
    27,055.92x = 40,583.94 × 10,423.79
  4. Step 4: Simplify right side
    27,055.92x = 423,038,378.11
  5. Step 5: Solve for x
    x = 423,038,378.11/27,055.92
  6. Step 6: Final answer
    x = 15,635.70

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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.