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Finding the Fourth Proportional to 6,523.12, 8,998.86 and 3,870.51

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Solution

The fourth proportional to 6,523.12, 8,998.86 and 3,870.51 is: 5,339.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,523.12 : 8,998.86 = 3,870.51 : x
  2. Step 2: Convert to fraction form
    6,523.12/8,998.86 = 3,870.51/x
  3. Step 3: Cross multiply
    6,523.12x = 8,998.86 × 3,870.51
  4. Step 4: Simplify right side
    6,523.12x = 34,830,177.62
  5. Step 5: Solve for x
    x = 34,830,177.62/6,523.12
  6. Step 6: Final answer
    x = 5,339.50

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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.