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Finding the Fourth Proportional to 18,243.63, 25,176.02 and 10,177.11

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Solution

The fourth proportional to 18,243.63, 25,176.02 and 10,177.11 is: 14,044.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.63 : 25,176.02 = 10,177.11 : x
  2. Step 2: Convert to fraction form
    18,243.63/25,176.02 = 10,177.11/x
  3. Step 3: Cross multiply
    18,243.63x = 25,176.02 × 10,177.11
  4. Step 4: Simplify right side
    18,243.63x = 256,219,074.02
  5. Step 5: Solve for x
    x = 256,219,074.02/18,243.63
  6. Step 6: Final answer
    x = 14,044.30

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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.