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Finding the Fourth Proportional to 19,496.96, 26,892.96 and 12,412.16

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Solution

The fourth proportional to 19,496.96, 26,892.96 and 12,412.16 is: 17,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,496.96 : 26,892.96 = 12,412.16 : x
  2. Step 2: Convert to fraction form
    19,496.96/26,892.96 = 12,412.16/x
  3. Step 3: Cross multiply
    19,496.96x = 26,892.96 × 12,412.16
  4. Step 4: Simplify right side
    19,496.96x = 333,799,722.39
  5. Step 5: Solve for x
    x = 333,799,722.39/19,496.96
  6. Step 6: Final answer
    x = 17,120.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.