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Finding the Fourth Proportional to 3,336.13, 5,004.19 and 870.93

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Solution

The fourth proportional to 3,336.13, 5,004.19 and 870.93 is: 1,306.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,336.13 : 5,004.19 = 870.93 : x
  2. Step 2: Convert to fraction form
    3,336.13/5,004.19 = 870.93/x
  3. Step 3: Cross multiply
    3,336.13x = 5,004.19 × 870.93
  4. Step 4: Simplify right side
    3,336.13x = 4,358,274.18
  5. Step 5: Solve for x
    x = 4,358,274.18/3,336.13
  6. Step 6: Final answer
    x = 1,306.39

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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.