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Finding the Fourth Proportional to 27,038.47, 40,554.51 and 8,318.47

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Solution

The fourth proportional to 27,038.47, 40,554.51 and 8,318.47 is: 12,476.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,038.47 : 40,554.51 = 8,318.47 : x
  2. Step 2: Convert to fraction form
    27,038.47/40,554.51 = 8,318.47/x
  3. Step 3: Cross multiply
    27,038.47x = 40,554.51 × 8,318.47
  4. Step 4: Simplify right side
    27,038.47x = 337,351,474.80
  5. Step 5: Solve for x
    x = 337,351,474.80/27,038.47
  6. Step 6: Final answer
    x = 12,476.72

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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.