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Finding the Fourth Proportional to 13,862.78, 19,134.08 and 7,898.00

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Solution

The fourth proportional to 13,862.78, 19,134.08 and 7,898.00 is: 10,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.78 : 19,134.08 = 7,898.00 : x
  2. Step 2: Convert to fraction form
    13,862.78/19,134.08 = 7,898.00/x
  3. Step 3: Cross multiply
    13,862.78x = 19,134.08 × 7,898.00
  4. Step 4: Simplify right side
    13,862.78x = 151,120,828.68
  5. Step 5: Solve for x
    x = 151,120,828.68/13,862.78
  6. Step 6: Final answer
    x = 10,901.20

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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.