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Finding the Fourth Proportional to 18,745.50, 25,870.01 and 10,362

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Solution

The fourth proportional to 18,745.50, 25,870.01 and 10,362 is: 14,300.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.50 : 25,870.01 = 10,362 : x
  2. Step 2: Convert to fraction form
    18,745.50/25,870.01 = 10,362/x
  3. Step 3: Cross multiply
    18,745.50x = 25,870.01 × 10,362
  4. Step 4: Simplify right side
    18,745.50x = 268,064,991.81
  5. Step 5: Solve for x
    x = 268,064,991.81/18,745.50
  6. Step 6: Final answer
    x = 14,300.23

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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.