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Finding the Fourth Proportional to 11,652.90, 16,081.02 and 6,347.58

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Solution

The fourth proportional to 11,652.90, 16,081.02 and 6,347.58 is: 8,759.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,652.90 : 16,081.02 = 6,347.58 : x
  2. Step 2: Convert to fraction form
    11,652.90/16,081.02 = 6,347.58/x
  3. Step 3: Cross multiply
    11,652.90x = 16,081.02 × 6,347.58
  4. Step 4: Simplify right side
    11,652.90x = 102,075,560.93
  5. Step 5: Solve for x
    x = 102,075,560.93/11,652.90
  6. Step 6: Final answer
    x = 8,759.67

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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.