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Finding the Fourth Proportional to 9,332.84, 12,881.21 and 5,356.68

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Solution

The fourth proportional to 9,332.84, 12,881.21 and 5,356.68 is: 7,393.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,332.84 : 12,881.21 = 5,356.68 : x
  2. Step 2: Convert to fraction form
    9,332.84/12,881.21 = 5,356.68/x
  3. Step 3: Cross multiply
    9,332.84x = 12,881.21 × 5,356.68
  4. Step 4: Simplify right side
    9,332.84x = 69,000,493.20
  5. Step 5: Solve for x
    x = 69,000,493.20/9,332.84
  6. Step 6: Final answer
    x = 7,393.30

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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.