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Finding the Fourth Proportional to 8,501.79, 12,741.88 and 4,806.09

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Solution

The fourth proportional to 8,501.79, 12,741.88 and 4,806.09 is: 7,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.79 : 12,741.88 = 4,806.09 : x
  2. Step 2: Convert to fraction form
    8,501.79/12,741.88 = 4,806.09/x
  3. Step 3: Cross multiply
    8,501.79x = 12,741.88 × 4,806.09
  4. Step 4: Simplify right side
    8,501.79x = 61,238,622.05
  5. Step 5: Solve for x
    x = 61,238,622.05/8,501.79
  6. Step 6: Final answer
    x = 7,203.03

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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.