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Finding the Fourth Proportional to 14,718.51, 20,291.67 and 9,994.59

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Solution

The fourth proportional to 14,718.51, 20,291.67 and 9,994.59 is: 13,779.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.51 : 20,291.67 = 9,994.59 : x
  2. Step 2: Convert to fraction form
    14,718.51/20,291.67 = 9,994.59/x
  3. Step 3: Cross multiply
    14,718.51x = 20,291.67 × 9,994.59
  4. Step 4: Simplify right side
    14,718.51x = 202,806,922.07
  5. Step 5: Solve for x
    x = 202,806,922.07/14,718.51
  6. Step 6: Final answer
    x = 13,779.04

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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.