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Finding the Fourth Proportional to 15,811.17, 23,718.08 and 6,451.82

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Solution

The fourth proportional to 15,811.17, 23,718.08 and 6,451.82 is: 9,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,811.17 : 23,718.08 = 6,451.82 : x
  2. Step 2: Convert to fraction form
    15,811.17/23,718.08 = 6,451.82/x
  3. Step 3: Cross multiply
    15,811.17x = 23,718.08 × 6,451.82
  4. Step 4: Simplify right side
    15,811.17x = 153,024,782.91
  5. Step 5: Solve for x
    x = 153,024,782.91/15,811.17
  6. Step 6: Final answer
    x = 9,678.27

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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.