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Finding the Fourth Proportional to 7,045.77, 9,722.82 and 3,859.23

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Solution

The fourth proportional to 7,045.77, 9,722.82 and 3,859.23 is: 5,325.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.77 : 9,722.82 = 3,859.23 : x
  2. Step 2: Convert to fraction form
    7,045.77/9,722.82 = 3,859.23/x
  3. Step 3: Cross multiply
    7,045.77x = 9,722.82 × 3,859.23
  4. Step 4: Simplify right side
    7,045.77x = 37,522,598.63
  5. Step 5: Solve for x
    x = 37,522,598.63/7,045.77
  6. Step 6: Final answer
    x = 5,325.55

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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.