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Finding the Fourth Proportional to 26,165.50, 36,111.66 and 14,987.50

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Solution

The fourth proportional to 26,165.50, 36,111.66 and 14,987.50 is: 20,684.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,165.50 : 36,111.66 = 14,987.50 : x
  2. Step 2: Convert to fraction form
    26,165.50/36,111.66 = 14,987.50/x
  3. Step 3: Cross multiply
    26,165.50x = 36,111.66 × 14,987.50
  4. Step 4: Simplify right side
    26,165.50x = 541,223,504.25
  5. Step 5: Solve for x
    x = 541,223,504.25/26,165.50
  6. Step 6: Final answer
    x = 20,684.62

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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.