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Finding the Fourth Proportional to 19,073.88, 26,321.88 and 10,690.36

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Solution

The fourth proportional to 19,073.88, 26,321.88 and 10,690.36 is: 14,752.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,073.88 : 26,321.88 = 10,690.36 : x
  2. Step 2: Convert to fraction form
    19,073.88/26,321.88 = 10,690.36/x
  3. Step 3: Cross multiply
    19,073.88x = 26,321.88 × 10,690.36
  4. Step 4: Simplify right side
    19,073.88x = 281,390,373.08
  5. Step 5: Solve for x
    x = 281,390,373.08/19,073.88
  6. Step 6: Final answer
    x = 14,752.66

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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.