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Finding the Fourth Proportional to 18,392.01, 25,393.89 and 14,363.38

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Solution

The fourth proportional to 18,392.01, 25,393.89 and 14,363.38 is: 19,831.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.01 : 25,393.89 = 14,363.38 : x
  2. Step 2: Convert to fraction form
    18,392.01/25,393.89 = 14,363.38/x
  3. Step 3: Cross multiply
    18,392.01x = 25,393.89 × 14,363.38
  4. Step 4: Simplify right side
    18,392.01x = 364,742,091.75
  5. Step 5: Solve for x
    x = 364,742,091.75/18,392.01
  6. Step 6: Final answer
    x = 19,831.55

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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.