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Finding the Fourth Proportional to 2,907.07, 4,359.99 and 958.81

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Solution

The fourth proportional to 2,907.07, 4,359.99 and 958.81 is: 1,438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.07 : 4,359.99 = 958.81 : x
  2. Step 2: Convert to fraction form
    2,907.07/4,359.99 = 958.81/x
  3. Step 3: Cross multiply
    2,907.07x = 4,359.99 × 958.81
  4. Step 4: Simplify right side
    2,907.07x = 4,180,402.01
  5. Step 5: Solve for x
    x = 4,180,402.01/2,907.07
  6. Step 6: Final answer
    x = 1,438.01

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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.