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Finding the Fourth Proportional to 6,624.51, 9,135.78 and 5,923.86

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Solution

The fourth proportional to 6,624.51, 9,135.78 and 5,923.86 is: 8,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.51 : 9,135.78 = 5,923.86 : x
  2. Step 2: Convert to fraction form
    6,624.51/9,135.78 = 5,923.86/x
  3. Step 3: Cross multiply
    6,624.51x = 9,135.78 × 5,923.86
  4. Step 4: Simplify right side
    6,624.51x = 54,119,081.71
  5. Step 5: Solve for x
    x = 54,119,081.71/6,624.51
  6. Step 6: Final answer
    x = 8,169.52

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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.