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Finding the Fourth Proportional to 18,971.94, 26,180.95 and 10,474.88

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Solution

The fourth proportional to 18,971.94, 26,180.95 and 10,474.88 is: 14,455.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.94 : 26,180.95 = 10,474.88 : x
  2. Step 2: Convert to fraction form
    18,971.94/26,180.95 = 10,474.88/x
  3. Step 3: Cross multiply
    18,971.94x = 26,180.95 × 10,474.88
  4. Step 4: Simplify right side
    18,971.94x = 274,242,227.32
  5. Step 5: Solve for x
    x = 274,242,227.32/18,971.94
  6. Step 6: Final answer
    x = 14,455.15

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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.