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Finding the Fourth Proportional to 36,718.76, 55,078.06 and 10,423.76

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Solution

The fourth proportional to 36,718.76, 55,078.06 and 10,423.76 is: 15,635.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,718.76 : 55,078.06 = 10,423.76 : x
  2. Step 2: Convert to fraction form
    36,718.76/55,078.06 = 10,423.76/x
  3. Step 3: Cross multiply
    36,718.76x = 55,078.06 × 10,423.76
  4. Step 4: Simplify right side
    36,718.76x = 574,120,478.71
  5. Step 5: Solve for x
    x = 574,120,478.71/36,718.76
  6. Step 6: Final answer
    x = 15,635.62

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1.5x scale

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.