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Finding the Fourth Proportional to 8,069.04, 11,123.60 and 5,671.76

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Solution

The fourth proportional to 8,069.04, 11,123.60 and 5,671.76 is: 7,818.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,069.04 : 11,123.60 = 5,671.76 : x
  2. Step 2: Convert to fraction form
    8,069.04/11,123.60 = 5,671.76/x
  3. Step 3: Cross multiply
    8,069.04x = 11,123.60 × 5,671.76
  4. Step 4: Simplify right side
    8,069.04x = 63,090,389.54
  5. Step 5: Solve for x
    x = 63,090,389.54/8,069.04
  6. Step 6: Final answer
    x = 7,818.82

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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.