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Finding the Fourth Proportional to 17,115.30, 23,903.10 and 17,115.30

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Solution

The fourth proportional to 17,115.30, 23,903.10 and 17,115.30 is: 23,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.30 : 23,903.10 = 17,115.30 : x
  2. Step 2: Convert to fraction form
    17,115.30/23,903.10 = 17,115.30/x
  3. Step 3: Cross multiply
    17,115.30x = 23,903.10 × 17,115.30
  4. Step 4: Simplify right side
    17,115.30x = 409,108,727.43
  5. Step 5: Solve for x
    x = 409,108,727.43/17,115.30
  6. Step 6: Final answer
    x = 23,903.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.