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Finding the Fourth Proportional to 19,068.50, 26,314.54 and 11,616.50

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Solution

The fourth proportional to 19,068.50, 26,314.54 and 11,616.50 is: 16,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,068.50 : 26,314.54 = 11,616.50 : x
  2. Step 2: Convert to fraction form
    19,068.50/26,314.54 = 11,616.50/x
  3. Step 3: Cross multiply
    19,068.50x = 26,314.54 × 11,616.50
  4. Step 4: Simplify right side
    19,068.50x = 305,682,853.91
  5. Step 5: Solve for x
    x = 305,682,853.91/19,068.50
  6. Step 6: Final answer
    x = 16,030.78

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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.