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Finding the Fourth Proportional to 12,798.95, 19,201.46 and 6,558.71

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Solution

The fourth proportional to 12,798.95, 19,201.46 and 6,558.71 is: 9,839.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.95 : 19,201.46 = 6,558.71 : x
  2. Step 2: Convert to fraction form
    12,798.95/19,201.46 = 6,558.71/x
  3. Step 3: Cross multiply
    12,798.95x = 19,201.46 × 6,558.71
  4. Step 4: Simplify right side
    12,798.95x = 125,936,678.92
  5. Step 5: Solve for x
    x = 125,936,678.92/12,798.95
  6. Step 6: Final answer
    x = 9,839.61

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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.