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Finding the Fourth Proportional to 19,157.32, 26,428.98 and 11,701

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Solution

The fourth proportional to 19,157.32, 26,428.98 and 11,701 is: 16,142.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.32 : 26,428.98 = 11,701 : x
  2. Step 2: Convert to fraction form
    19,157.32/26,428.98 = 11,701/x
  3. Step 3: Cross multiply
    19,157.32x = 26,428.98 × 11,701
  4. Step 4: Simplify right side
    19,157.32x = 309,245,494.98
  5. Step 5: Solve for x
    x = 309,245,494.98/19,157.32
  6. Step 6: Final answer
    x = 16,142.42

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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.