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Finding the Fourth Proportional to 18,136.91, 26,985.92 and 17,684.93

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Solution

The fourth proportional to 18,136.91, 26,985.92 and 17,684.93 is: 26,313.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.91 : 26,985.92 = 17,684.93 : x
  2. Step 2: Convert to fraction form
    18,136.91/26,985.92 = 17,684.93/x
  3. Step 3: Cross multiply
    18,136.91x = 26,985.92 × 17,684.93
  4. Step 4: Simplify right side
    18,136.91x = 477,244,085.23
  5. Step 5: Solve for x
    x = 477,244,085.23/18,136.91
  6. Step 6: Final answer
    x = 26,313.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.