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Finding the Fourth Proportional to 7,908.52, 10,913.81 and 4,323.49

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Solution

The fourth proportional to 7,908.52, 10,913.81 and 4,323.49 is: 5,966.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.52 : 10,913.81 = 4,323.49 : x
  2. Step 2: Convert to fraction form
    7,908.52/10,913.81 = 4,323.49/x
  3. Step 3: Cross multiply
    7,908.52x = 10,913.81 × 4,323.49
  4. Step 4: Simplify right side
    7,908.52x = 47,185,748.40
  5. Step 5: Solve for x
    x = 47,185,748.40/7,908.52
  6. Step 6: Final answer
    x = 5,966.44

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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.