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Finding the Fourth Proportional to 14,055.15, 19,395.78 and 7,681.46

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Solution

The fourth proportional to 14,055.15, 19,395.78 and 7,681.46 is: 10,600.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,055.15 : 19,395.78 = 7,681.46 : x
  2. Step 2: Convert to fraction form
    14,055.15/19,395.78 = 7,681.46/x
  3. Step 3: Cross multiply
    14,055.15x = 19,395.78 × 7,681.46
  4. Step 4: Simplify right side
    14,055.15x = 148,987,908.24
  5. Step 5: Solve for x
    x = 148,987,908.24/14,055.15
  6. Step 6: Final answer
    x = 10,600.24

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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.