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Finding the Fourth Proportional to 9,907.70, 14,862.99 and 3,335.78

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Solution

The fourth proportional to 9,907.70, 14,862.99 and 3,335.78 is: 5,004.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907.70 : 14,862.99 = 3,335.78 : x
  2. Step 2: Convert to fraction form
    9,907.70/14,862.99 = 3,335.78/x
  3. Step 3: Cross multiply
    9,907.70x = 14,862.99 × 3,335.78
  4. Step 4: Simplify right side
    9,907.70x = 49,579,664.78
  5. Step 5: Solve for x
    x = 49,579,664.78/9,907.70
  6. Step 6: Final answer
    x = 5,004.15

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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.