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Finding the Fourth Proportional to 25,541.91, 38,312.88 and 8,013.12

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Solution

The fourth proportional to 25,541.91, 38,312.88 and 8,013.12 is: 12,019.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,541.91 : 38,312.88 = 8,013.12 : x
  2. Step 2: Convert to fraction form
    25,541.91/38,312.88 = 8,013.12/x
  3. Step 3: Cross multiply
    25,541.91x = 38,312.88 × 8,013.12
  4. Step 4: Simplify right side
    25,541.91x = 307,005,704.99
  5. Step 5: Solve for x
    x = 307,005,704.99/25,541.91
  6. Step 6: Final answer
    x = 12,019.68

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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.