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Finding the Fourth Proportional to 19,488.76, 29,228.04 and 7,007.32

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Solution

The fourth proportional to 19,488.76, 29,228.04 and 7,007.32 is: 10,509.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,488.76 : 29,228.04 = 7,007.32 : x
  2. Step 2: Convert to fraction form
    19,488.76/29,228.04 = 7,007.32/x
  3. Step 3: Cross multiply
    19,488.76x = 29,228.04 × 7,007.32
  4. Step 4: Simplify right side
    19,488.76x = 204,810,229.25
  5. Step 5: Solve for x
    x = 204,810,229.25/19,488.76
  6. Step 6: Final answer
    x = 10,509.15

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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.