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Finding the Fourth Proportional to 22,718.91, 34,079.72 and 7,136.53

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Solution

The fourth proportional to 22,718.91, 34,079.72 and 7,136.53 is: 10,705.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,718.91 : 34,079.72 = 7,136.53 : x
  2. Step 2: Convert to fraction form
    22,718.91/34,079.72 = 7,136.53/x
  3. Step 3: Cross multiply
    22,718.91x = 34,079.72 × 7,136.53
  4. Step 4: Simplify right side
    22,718.91x = 243,210,944.17
  5. Step 5: Solve for x
    x = 243,210,944.17/22,718.91
  6. Step 6: Final answer
    x = 10,705.22

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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.