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Finding the Fourth Proportional to 8,335.86, 12,503.79 and 4,180.97

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Solution

The fourth proportional to 8,335.86, 12,503.79 and 4,180.97 is: 6,271.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.86 : 12,503.79 = 4,180.97 : x
  2. Step 2: Convert to fraction form
    8,335.86/12,503.79 = 4,180.97/x
  3. Step 3: Cross multiply
    8,335.86x = 12,503.79 × 4,180.97
  4. Step 4: Simplify right side
    8,335.86x = 52,277,908.36
  5. Step 5: Solve for x
    x = 52,277,908.36/8,335.86
  6. Step 6: Final answer
    x = 6,271.45

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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.