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Finding the Fourth Proportional to 6,392.76, 9,568.40 and 5,507.03

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Solution

The fourth proportional to 6,392.76, 9,568.40 and 5,507.03 is: 8,242.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392.76 : 9,568.40 = 5,507.03 : x
  2. Step 2: Convert to fraction form
    6,392.76/9,568.40 = 5,507.03/x
  3. Step 3: Cross multiply
    6,392.76x = 9,568.40 × 5,507.03
  4. Step 4: Simplify right side
    6,392.76x = 52,693,390.47
  5. Step 5: Solve for x
    x = 52,693,390.47/6,392.76
  6. Step 6: Final answer
    x = 8,242.67

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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.