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Finding the Fourth Proportional to 7,104.64, 9,803.82 and 4,119.52

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Solution

The fourth proportional to 7,104.64, 9,803.82 and 4,119.52 is: 5,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.64 : 9,803.82 = 4,119.52 : x
  2. Step 2: Convert to fraction form
    7,104.64/9,803.82 = 4,119.52/x
  3. Step 3: Cross multiply
    7,104.64x = 9,803.82 × 4,119.52
  4. Step 4: Simplify right side
    7,104.64x = 40,387,032.57
  5. Step 5: Solve for x
    x = 40,387,032.57/7,104.64
  6. Step 6: Final answer
    x = 5,684.60

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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.