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Finding the Fourth Proportional to 4,699.40, 7,039.98 and 2,507.40

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Solution

The fourth proportional to 4,699.40, 7,039.98 and 2,507.40 is: 3,756.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,699.40 : 7,039.98 = 2,507.40 : x
  2. Step 2: Convert to fraction form
    4,699.40/7,039.98 = 2,507.40/x
  3. Step 3: Cross multiply
    4,699.40x = 7,039.98 × 2,507.40
  4. Step 4: Simplify right side
    4,699.40x = 17,652,045.85
  5. Step 5: Solve for x
    x = 17,652,045.85/4,699.40
  6. Step 6: Final answer
    x = 3,756.23

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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.