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Finding the Fourth Proportional to 7,801.87, 10,766.06 and 4,445.03

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Solution

The fourth proportional to 7,801.87, 10,766.06 and 4,445.03 is: 6,133.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.87 : 10,766.06 = 4,445.03 : x
  2. Step 2: Convert to fraction form
    7,801.87/10,766.06 = 4,445.03/x
  3. Step 3: Cross multiply
    7,801.87x = 10,766.06 × 4,445.03
  4. Step 4: Simplify right side
    7,801.87x = 47,855,459.68
  5. Step 5: Solve for x
    x = 47,855,459.68/7,801.87
  6. Step 6: Final answer
    x = 6,133.84

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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.