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Finding the Fourth Proportional to 3,332.93, 5,000.21 and 992.93

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Solution

The fourth proportional to 3,332.93, 5,000.21 and 992.93 is: 1,489.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,332.93 : 5,000.21 = 992.93 : x
  2. Step 2: Convert to fraction form
    3,332.93/5,000.21 = 992.93/x
  3. Step 3: Cross multiply
    3,332.93x = 5,000.21 × 992.93
  4. Step 4: Simplify right side
    3,332.93x = 4,964,828.55
  5. Step 5: Solve for x
    x = 4,964,828.55/3,332.93
  6. Step 6: Final answer
    x = 1,489.63

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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.