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Finding the Fourth Proportional to 6,160.90, 8,484.78 and 5,765.62

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Solution

The fourth proportional to 6,160.90, 8,484.78 and 5,765.62 is: 7,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,160.90 : 8,484.78 = 5,765.62 : x
  2. Step 2: Convert to fraction form
    6,160.90/8,484.78 = 5,765.62/x
  3. Step 3: Cross multiply
    6,160.90x = 8,484.78 × 5,765.62
  4. Step 4: Simplify right side
    6,160.90x = 48,920,017.26
  5. Step 5: Solve for x
    x = 48,920,017.26/6,160.90
  6. Step 6: Final answer
    x = 7,940.40

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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.