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Finding the Fourth Proportional to 8,905.96, 13,348.86 and 6,707.80

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Solution

The fourth proportional to 8,905.96, 13,348.86 and 6,707.80 is: 10,054.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.96 : 13,348.86 = 6,707.80 : x
  2. Step 2: Convert to fraction form
    8,905.96/13,348.86 = 6,707.80/x
  3. Step 3: Cross multiply
    8,905.96x = 13,348.86 × 6,707.80
  4. Step 4: Simplify right side
    8,905.96x = 89,541,483.11
  5. Step 5: Solve for x
    x = 89,541,483.11/8,905.96
  6. Step 6: Final answer
    x = 10,054.11

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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.