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Finding the Fourth Proportional to 18,602.19, 27,903.42 and 6,915.38

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Solution

The fourth proportional to 18,602.19, 27,903.42 and 6,915.38 is: 10,373.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602.19 : 27,903.42 = 6,915.38 : x
  2. Step 2: Convert to fraction form
    18,602.19/27,903.42 = 6,915.38/x
  3. Step 3: Cross multiply
    18,602.19x = 27,903.42 × 6,915.38
  4. Step 4: Simplify right side
    18,602.19x = 192,962,613.08
  5. Step 5: Solve for x
    x = 192,962,613.08/18,602.19
  6. Step 6: Final answer
    x = 10,373.11

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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.