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Finding the Fourth Proportional to 67,314.19, 100,971.28 and 18,066.19

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Solution

The fourth proportional to 67,314.19, 100,971.28 and 18,066.19 is: 27,099.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,314.19 : 100,971.28 = 18,066.19 : x
  2. Step 2: Convert to fraction form
    67,314.19/100,971.28 = 18,066.19/x
  3. Step 3: Cross multiply
    67,314.19x = 100,971.28 × 18,066.19
  4. Step 4: Simplify right side
    67,314.19x = 1,824,166,329.02
  5. Step 5: Solve for x
    x = 1,824,166,329.02/67,314.19
  6. Step 6: Final answer
    x = 27,099.28

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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.