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Finding the Fourth Proportional to 6,872.37, 9,486.15 and 4,888.68

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Solution

The fourth proportional to 6,872.37, 9,486.15 and 4,888.68 is: 6,748.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.37 : 9,486.15 = 4,888.68 : x
  2. Step 2: Convert to fraction form
    6,872.37/9,486.15 = 4,888.68/x
  3. Step 3: Cross multiply
    6,872.37x = 9,486.15 × 4,888.68
  4. Step 4: Simplify right side
    6,872.37x = 46,374,751.78
  5. Step 5: Solve for x
    x = 46,374,751.78/6,872.37
  6. Step 6: Final answer
    x = 6,748.00

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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.