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Finding the Fourth Proportional to 18,750.98, 25,877.25 and 10,368.02

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Solution

The fourth proportional to 18,750.98, 25,877.25 and 10,368.02 is: 14,308.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.98 : 25,877.25 = 10,368.02 : x
  2. Step 2: Convert to fraction form
    18,750.98/25,877.25 = 10,368.02/x
  3. Step 3: Cross multiply
    18,750.98x = 25,877.25 × 10,368.02
  4. Step 4: Simplify right side
    18,750.98x = 268,295,845.55
  5. Step 5: Solve for x
    x = 268,295,845.55/18,750.98
  6. Step 6: Final answer
    x = 14,308.36

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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.