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Finding the Fourth Proportional to 18,356.84, 25,332.54 and 10,803.44

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Solution

The fourth proportional to 18,356.84, 25,332.54 and 10,803.44 is: 14,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,356.84 : 25,332.54 = 10,803.44 : x
  2. Step 2: Convert to fraction form
    18,356.84/25,332.54 = 10,803.44/x
  3. Step 3: Cross multiply
    18,356.84x = 25,332.54 × 10,803.44
  4. Step 4: Simplify right side
    18,356.84x = 273,678,575.94
  5. Step 5: Solve for x
    x = 273,678,575.94/18,356.84
  6. Step 6: Final answer
    x = 14,908.81

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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.