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Finding the Fourth Proportional to 6,784.92, 9,364.05 and 4,132.71

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Solution

The fourth proportional to 6,784.92, 9,364.05 and 4,132.71 is: 5,703.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,784.92 : 9,364.05 = 4,132.71 : x
  2. Step 2: Convert to fraction form
    6,784.92/9,364.05 = 4,132.71/x
  3. Step 3: Cross multiply
    6,784.92x = 9,364.05 × 4,132.71
  4. Step 4: Simplify right side
    6,784.92x = 38,698,903.08
  5. Step 5: Solve for x
    x = 38,698,903.08/6,784.92
  6. Step 6: Final answer
    x = 5,703.66

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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.