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Finding the Fourth Proportional to 9,338.43, 12,903.39 and 7,465.44

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Solution

The fourth proportional to 9,338.43, 12,903.39 and 7,465.44 is: 10,315.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,338.43 : 12,903.39 = 7,465.44 : x
  2. Step 2: Convert to fraction form
    9,338.43/12,903.39 = 7,465.44/x
  3. Step 3: Cross multiply
    9,338.43x = 12,903.39 × 7,465.44
  4. Step 4: Simplify right side
    9,338.43x = 96,329,483.84
  5. Step 5: Solve for x
    x = 96,329,483.84/9,338.43
  6. Step 6: Final answer
    x = 10,315.38

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Half scale
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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.