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Finding the Fourth Proportional to 18,038.16, 27,050.76 and 6,939.27

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Solution

The fourth proportional to 18,038.16, 27,050.76 and 6,939.27 is: 10,406.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,038.16 : 27,050.76 = 6,939.27 : x
  2. Step 2: Convert to fraction form
    18,038.16/27,050.76 = 6,939.27/x
  3. Step 3: Cross multiply
    18,038.16x = 27,050.76 × 6,939.27
  4. Step 4: Simplify right side
    18,038.16x = 187,712,527.35
  5. Step 5: Solve for x
    x = 187,712,527.35/18,038.16
  6. Step 6: Final answer
    x = 10,406.41

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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.