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Finding the Fourth Proportional to 8,795.88, 12,138.30 and 4,817.16

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Solution

The fourth proportional to 8,795.88, 12,138.30 and 4,817.16 is: 6,647.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,795.88 : 12,138.30 = 4,817.16 : x
  2. Step 2: Convert to fraction form
    8,795.88/12,138.30 = 4,817.16/x
  3. Step 3: Cross multiply
    8,795.88x = 12,138.30 × 4,817.16
  4. Step 4: Simplify right side
    8,795.88x = 58,472,133.23
  5. Step 5: Solve for x
    x = 58,472,133.23/8,795.88
  6. Step 6: Final answer
    x = 6,647.67

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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.