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Finding the Fourth Proportional to 18,451.95, 27,678.02 and 4,600.95

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Solution

The fourth proportional to 18,451.95, 27,678.02 and 4,600.95 is: 6,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451.95 : 27,678.02 = 4,600.95 : x
  2. Step 2: Convert to fraction form
    18,451.95/27,678.02 = 4,600.95/x
  3. Step 3: Cross multiply
    18,451.95x = 27,678.02 × 4,600.95
  4. Step 4: Simplify right side
    18,451.95x = 127,345,186.12
  5. Step 5: Solve for x
    x = 127,345,186.12/18,451.95
  6. Step 6: Final answer
    x = 6,901.45

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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.