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Finding the Fourth Proportional to 7,658.60, 10,568.88 and 4,474.08

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Solution

The fourth proportional to 7,658.60, 10,568.88 and 4,474.08 is: 6,174.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,658.60 : 10,568.88 = 4,474.08 : x
  2. Step 2: Convert to fraction form
    7,658.60/10,568.88 = 4,474.08/x
  3. Step 3: Cross multiply
    7,658.60x = 10,568.88 × 4,474.08
  4. Step 4: Simplify right side
    7,658.60x = 47,286,014.63
  5. Step 5: Solve for x
    x = 47,286,014.63/7,658.60
  6. Step 6: Final answer
    x = 6,174.24

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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.