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Finding the Fourth Proportional to 11,870.70, 16,382.49 and 6,566.01

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Solution

The fourth proportional to 11,870.70, 16,382.49 and 6,566.01 is: 9,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870.70 : 16,382.49 = 6,566.01 : x
  2. Step 2: Convert to fraction form
    11,870.70/16,382.49 = 6,566.01/x
  3. Step 3: Cross multiply
    11,870.70x = 16,382.49 × 6,566.01
  4. Step 4: Simplify right side
    11,870.70x = 107,567,593.16
  5. Step 5: Solve for x
    x = 107,567,593.16/11,870.70
  6. Step 6: Final answer
    x = 9,061.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.