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Finding the Fourth Proportional to 7,403, 10,216.20 and 4,261.16

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Solution

The fourth proportional to 7,403, 10,216.20 and 4,261.16 is: 5,880.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,403 : 10,216.20 = 4,261.16 : x
  2. Step 2: Convert to fraction form
    7,403/10,216.20 = 4,261.16/x
  3. Step 3: Cross multiply
    7,403x = 10,216.20 × 4,261.16
  4. Step 4: Simplify right side
    7,403x = 43,532,862.79
  5. Step 5: Solve for x
    x = 43,532,862.79/7,403
  6. Step 6: Final answer
    x = 5,880.44

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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.