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Finding the Fourth Proportional to 27,439.92, 37,868.99 and 16,688.99

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Solution

The fourth proportional to 27,439.92, 37,868.99 and 16,688.99 is: 23,031.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,439.92 : 37,868.99 = 16,688.99 : x
  2. Step 2: Convert to fraction form
    27,439.92/37,868.99 = 16,688.99/x
  3. Step 3: Cross multiply
    27,439.92x = 37,868.99 × 16,688.99
  4. Step 4: Simplify right side
    27,439.92x = 631,995,206.65
  5. Step 5: Solve for x
    x = 631,995,206.65/27,439.92
  6. Step 6: Final answer
    x = 23,031.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.