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Finding the Fourth Proportional to 8,035.80, 11,089.08 and 4,678.74

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Solution

The fourth proportional to 8,035.80, 11,089.08 and 4,678.74 is: 6,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,035.80 : 11,089.08 = 4,678.74 : x
  2. Step 2: Convert to fraction form
    8,035.80/11,089.08 = 4,678.74/x
  3. Step 3: Cross multiply
    8,035.80x = 11,089.08 × 4,678.74
  4. Step 4: Simplify right side
    8,035.80x = 51,882,922.16
  5. Step 5: Solve for x
    x = 51,882,922.16/8,035.80
  6. Step 6: Final answer
    x = 6,456.47

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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.