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Finding the Fourth Proportional to 7,903.40, 10,906.76 and 4,366.76

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Solution

The fourth proportional to 7,903.40, 10,906.76 and 4,366.76 is: 6,026.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.40 : 10,906.76 = 4,366.76 : x
  2. Step 2: Convert to fraction form
    7,903.40/10,906.76 = 4,366.76/x
  3. Step 3: Cross multiply
    7,903.40x = 10,906.76 × 4,366.76
  4. Step 4: Simplify right side
    7,903.40x = 47,627,203.30
  5. Step 5: Solve for x
    x = 47,627,203.30/7,903.40
  6. Step 6: Final answer
    x = 6,026.17

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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.