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Finding the Fourth Proportional to 26,978.75, 37,231.14 and 14,880.63

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Solution

The fourth proportional to 26,978.75, 37,231.14 and 14,880.63 is: 20,535.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,978.75 : 37,231.14 = 14,880.63 : x
  2. Step 2: Convert to fraction form
    26,978.75/37,231.14 = 14,880.63/x
  3. Step 3: Cross multiply
    26,978.75x = 37,231.14 × 14,880.63
  4. Step 4: Simplify right side
    26,978.75x = 554,022,700.10
  5. Step 5: Solve for x
    x = 554,022,700.10/26,978.75
  6. Step 6: Final answer
    x = 20,535.52

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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.