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Finding the Fourth Proportional to 18,598.17, 25,669.20 and 11,048.69

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Solution

The fourth proportional to 18,598.17, 25,669.20 and 11,048.69 is: 15,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,598.17 : 25,669.20 = 11,048.69 : x
  2. Step 2: Convert to fraction form
    18,598.17/25,669.20 = 11,048.69/x
  3. Step 3: Cross multiply
    18,598.17x = 25,669.20 × 11,048.69
  4. Step 4: Simplify right side
    18,598.17x = 283,610,978.10
  5. Step 5: Solve for x
    x = 283,610,978.10/18,598.17
  6. Step 6: Final answer
    x = 15,249.40

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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.