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Finding the Fourth Proportional to 7,758.86, 10,707.46 and 4,401.54

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Solution

The fourth proportional to 7,758.86, 10,707.46 and 4,401.54 is: 6,074.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.86 : 10,707.46 = 4,401.54 : x
  2. Step 2: Convert to fraction form
    7,758.86/10,707.46 = 4,401.54/x
  3. Step 3: Cross multiply
    7,758.86x = 10,707.46 × 4,401.54
  4. Step 4: Simplify right side
    7,758.86x = 47,129,302.48
  5. Step 5: Solve for x
    x = 47,129,302.48/7,758.86
  6. Step 6: Final answer
    x = 6,074.26

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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.