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Finding the Fourth Proportional to 18,459.90, 27,707.67 and 17,460.90

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Solution

The fourth proportional to 18,459.90, 27,707.67 and 17,460.90 is: 26,208.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,459.90 : 27,707.67 = 17,460.90 : x
  2. Step 2: Convert to fraction form
    18,459.90/27,707.67 = 17,460.90/x
  3. Step 3: Cross multiply
    18,459.90x = 27,707.67 × 17,460.90
  4. Step 4: Simplify right side
    18,459.90x = 483,800,855.10
  5. Step 5: Solve for x
    x = 483,800,855.10/18,459.90
  6. Step 6: Final answer
    x = 26,208.21

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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.