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Finding the Fourth Proportional to 7,903.76, 10,909.28 and 4,546.97

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Solution

The fourth proportional to 7,903.76, 10,909.28 and 4,546.97 is: 6,276.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.76 : 10,909.28 = 4,546.97 : x
  2. Step 2: Convert to fraction form
    7,903.76/10,909.28 = 4,546.97/x
  3. Step 3: Cross multiply
    7,903.76x = 10,909.28 × 4,546.97
  4. Step 4: Simplify right side
    7,903.76x = 49,604,168.88
  5. Step 5: Solve for x
    x = 49,604,168.88/7,903.76
  6. Step 6: Final answer
    x = 6,276.02

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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.