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Finding the Fourth Proportional to 10,604.95, 14,625.06 and 6,821.44

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Solution

The fourth proportional to 10,604.95, 14,625.06 and 6,821.44 is: 9,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,604.95 : 14,625.06 = 6,821.44 : x
  2. Step 2: Convert to fraction form
    10,604.95/14,625.06 = 6,821.44/x
  3. Step 3: Cross multiply
    10,604.95x = 14,625.06 × 6,821.44
  4. Step 4: Simplify right side
    10,604.95x = 99,763,969.29
  5. Step 5: Solve for x
    x = 99,763,969.29/10,604.95
  6. Step 6: Final answer
    x = 9,407.30

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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.