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Finding the Fourth Proportional to 8,574.80, 11,833.20 and 4,848.80

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Solution

The fourth proportional to 8,574.80, 11,833.20 and 4,848.80 is: 6,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.80 : 11,833.20 = 4,848.80 : x
  2. Step 2: Convert to fraction form
    8,574.80/11,833.20 = 4,848.80/x
  3. Step 3: Cross multiply
    8,574.80x = 11,833.20 × 4,848.80
  4. Step 4: Simplify right side
    8,574.80x = 57,376,820.16
  5. Step 5: Solve for x
    x = 57,376,820.16/8,574.80
  6. Step 6: Final answer
    x = 6,691.33

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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.