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Finding the Fourth Proportional to 8,529.70, 12,794.55 and 4,641.70

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Solution

The fourth proportional to 8,529.70, 12,794.55 and 4,641.70 is: 6,962.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529.70 : 12,794.55 = 4,641.70 : x
  2. Step 2: Convert to fraction form
    8,529.70/12,794.55 = 4,641.70/x
  3. Step 3: Cross multiply
    8,529.70x = 12,794.55 × 4,641.70
  4. Step 4: Simplify right side
    8,529.70x = 59,388,462.74
  5. Step 5: Solve for x
    x = 59,388,462.74/8,529.70
  6. Step 6: Final answer
    x = 6,962.55

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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.