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Finding the Fourth Proportional to 3,953.16, 5,931.15 and 2,470.67

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Solution

The fourth proportional to 3,953.16, 5,931.15 and 2,470.67 is: 3,706.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.16 : 5,931.15 = 2,470.67 : x
  2. Step 2: Convert to fraction form
    3,953.16/5,931.15 = 2,470.67/x
  3. Step 3: Cross multiply
    3,953.16x = 5,931.15 × 2,470.67
  4. Step 4: Simplify right side
    3,953.16x = 14,653,914.37
  5. Step 5: Solve for x
    x = 14,653,914.37/3,953.16
  6. Step 6: Final answer
    x = 3,706.89

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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.