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Finding the Fourth Proportional to 9,919.52, 14,871.99 and 4,729.04

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Solution

The fourth proportional to 9,919.52, 14,871.99 and 4,729.04 is: 7,090.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.52 : 14,871.99 = 4,729.04 : x
  2. Step 2: Convert to fraction form
    9,919.52/14,871.99 = 4,729.04/x
  3. Step 3: Cross multiply
    9,919.52x = 14,871.99 × 4,729.04
  4. Step 4: Simplify right side
    9,919.52x = 70,330,235.59
  5. Step 5: Solve for x
    x = 70,330,235.59/9,919.52
  6. Step 6: Final answer
    x = 7,090.08

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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.