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Finding the Fourth Proportional to 18,854.36, 26,019.22 and 10,356.68

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Solution

The fourth proportional to 18,854.36, 26,019.22 and 10,356.68 is: 14,292.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,854.36 : 26,019.22 = 10,356.68 : x
  2. Step 2: Convert to fraction form
    18,854.36/26,019.22 = 10,356.68/x
  3. Step 3: Cross multiply
    18,854.36x = 26,019.22 × 10,356.68
  4. Step 4: Simplify right side
    18,854.36x = 269,472,605.29
  5. Step 5: Solve for x
    x = 269,472,605.29/18,854.36
  6. Step 6: Final answer
    x = 14,292.33

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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.