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Finding the Fourth Proportional to 27,240.94, 40,861.47 and 8,521.10

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Solution

The fourth proportional to 27,240.94, 40,861.47 and 8,521.10 is: 12,781.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,240.94 : 40,861.47 = 8,521.10 : x
  2. Step 2: Convert to fraction form
    27,240.94/40,861.47 = 8,521.10/x
  3. Step 3: Cross multiply
    27,240.94x = 40,861.47 × 8,521.10
  4. Step 4: Simplify right side
    27,240.94x = 348,184,467.71
  5. Step 5: Solve for x
    x = 348,184,467.71/27,240.94
  6. Step 6: Final answer
    x = 12,781.66

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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.