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Finding the Fourth Proportional to 8,571.53, 12,848.86 and 5,009.13

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Solution

The fourth proportional to 8,571.53, 12,848.86 and 5,009.13 is: 7,508.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.53 : 12,848.86 = 5,009.13 : x
  2. Step 2: Convert to fraction form
    8,571.53/12,848.86 = 5,009.13/x
  3. Step 3: Cross multiply
    8,571.53x = 12,848.86 × 5,009.13
  4. Step 4: Simplify right side
    8,571.53x = 64,361,603.42
  5. Step 5: Solve for x
    x = 64,361,603.42/8,571.53
  6. Step 6: Final answer
    x = 7,508.76

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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.