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Finding the Fourth Proportional to 14,040.61, 19,376.11 and 7,752.98

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Solution

The fourth proportional to 14,040.61, 19,376.11 and 7,752.98 is: 10,699.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.61 : 19,376.11 = 7,752.98 : x
  2. Step 2: Convert to fraction form
    14,040.61/19,376.11 = 7,752.98/x
  3. Step 3: Cross multiply
    14,040.61x = 19,376.11 × 7,752.98
  4. Step 4: Simplify right side
    14,040.61x = 150,222,651.44
  5. Step 5: Solve for x
    x = 150,222,651.44/14,040.61
  6. Step 6: Final answer
    x = 10,699.16

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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.