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Finding the Fourth Proportional to 7,258.70, 10,016.70 and 4,274.66

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Solution

The fourth proportional to 7,258.70, 10,016.70 and 4,274.66 is: 5,898.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,258.70 : 10,016.70 = 4,274.66 : x
  2. Step 2: Convert to fraction form
    7,258.70/10,016.70 = 4,274.66/x
  3. Step 3: Cross multiply
    7,258.70x = 10,016.70 × 4,274.66
  4. Step 4: Simplify right side
    7,258.70x = 42,817,936.74
  5. Step 5: Solve for x
    x = 42,817,936.74/7,258.70
  6. Step 6: Final answer
    x = 5,898.85

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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.