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Finding the Fourth Proportional to 18,737.16, 28,105.73 and 5,598.75

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Solution

The fourth proportional to 18,737.16, 28,105.73 and 5,598.75 is: 8,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737.16 : 28,105.73 = 5,598.75 : x
  2. Step 2: Convert to fraction form
    18,737.16/28,105.73 = 5,598.75/x
  3. Step 3: Cross multiply
    18,737.16x = 28,105.73 × 5,598.75
  4. Step 4: Simplify right side
    18,737.16x = 157,356,955.84
  5. Step 5: Solve for x
    x = 157,356,955.84/18,737.16
  6. Step 6: Final answer
    x = 8,398.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.