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Finding the Fourth Proportional to 26,991.98, 40,492.72 and 9,218.46

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Solution

The fourth proportional to 26,991.98, 40,492.72 and 9,218.46 is: 13,829.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,991.98 : 40,492.72 = 9,218.46 : x
  2. Step 2: Convert to fraction form
    26,991.98/40,492.72 = 9,218.46/x
  3. Step 3: Cross multiply
    26,991.98x = 40,492.72 × 9,218.46
  4. Step 4: Simplify right side
    26,991.98x = 373,280,519.61
  5. Step 5: Solve for x
    x = 373,280,519.61/26,991.98
  6. Step 6: Final answer
    x = 13,829.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.