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Finding the Fourth Proportional to 18,856.50, 26,017.62 and 11,301.42

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Solution

The fourth proportional to 18,856.50, 26,017.62 and 11,301.42 is: 15,593.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,856.50 : 26,017.62 = 11,301.42 : x
  2. Step 2: Convert to fraction form
    18,856.50/26,017.62 = 11,301.42/x
  3. Step 3: Cross multiply
    18,856.50x = 26,017.62 × 11,301.42
  4. Step 4: Simplify right side
    18,856.50x = 294,036,051.02
  5. Step 5: Solve for x
    x = 294,036,051.02/18,856.50
  6. Step 6: Final answer
    x = 15,593.35

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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.