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Finding the Fourth Proportional to 19,310.22, 26,645.90 and 10,811.16

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Solution

The fourth proportional to 19,310.22, 26,645.90 and 10,811.16 is: 14,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310.22 : 26,645.90 = 10,811.16 : x
  2. Step 2: Convert to fraction form
    19,310.22/26,645.90 = 10,811.16/x
  3. Step 3: Cross multiply
    19,310.22x = 26,645.90 × 10,811.16
  4. Step 4: Simplify right side
    19,310.22x = 288,073,088.24
  5. Step 5: Solve for x
    x = 288,073,088.24/19,310.22
  6. Step 6: Final answer
    x = 14,918.17

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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.