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Finding the Fourth Proportional to 7,332.84, 10,985.42 and 3,630.74

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Solution

The fourth proportional to 7,332.84, 10,985.42 and 3,630.74 is: 5,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,332.84 : 10,985.42 = 3,630.74 : x
  2. Step 2: Convert to fraction form
    7,332.84/10,985.42 = 3,630.74/x
  3. Step 3: Cross multiply
    7,332.84x = 10,985.42 × 3,630.74
  4. Step 4: Simplify right side
    7,332.84x = 39,885,157.96
  5. Step 5: Solve for x
    x = 39,885,157.96/7,332.84
  6. Step 6: Final answer
    x = 5,439.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.