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Finding the Fourth Proportional to 18,777.98, 25,914.93 and 10,395.02

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Solution

The fourth proportional to 18,777.98, 25,914.93 and 10,395.02 is: 14,345.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.98 : 25,914.93 = 10,395.02 : x
  2. Step 2: Convert to fraction form
    18,777.98/25,914.93 = 10,395.02/x
  3. Step 3: Cross multiply
    18,777.98x = 25,914.93 × 10,395.02
  4. Step 4: Simplify right side
    18,777.98x = 269,386,215.65
  5. Step 5: Solve for x
    x = 269,386,215.65/18,777.98
  6. Step 6: Final answer
    x = 14,345.86

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1.5x scale

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.