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Finding the Fourth Proportional to 9,136.92, 12,609.18 and 5,602.08

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Solution

The fourth proportional to 9,136.92, 12,609.18 and 5,602.08 is: 7,731.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,136.92 : 12,609.18 = 5,602.08 : x
  2. Step 2: Convert to fraction form
    9,136.92/12,609.18 = 5,602.08/x
  3. Step 3: Cross multiply
    9,136.92x = 12,609.18 × 5,602.08
  4. Step 4: Simplify right side
    9,136.92x = 70,637,635.09
  5. Step 5: Solve for x
    x = 70,637,635.09/9,136.92
  6. Step 6: Final answer
    x = 7,731.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.