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Finding the Fourth Proportional to 7,179.52, 9,907.23 and 4,036.18

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Solution

The fourth proportional to 7,179.52, 9,907.23 and 4,036.18 is: 5,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.52 : 9,907.23 = 4,036.18 : x
  2. Step 2: Convert to fraction form
    7,179.52/9,907.23 = 4,036.18/x
  3. Step 3: Cross multiply
    7,179.52x = 9,907.23 × 4,036.18
  4. Step 4: Simplify right side
    7,179.52x = 39,987,363.58
  5. Step 5: Solve for x
    x = 39,987,363.58/7,179.52
  6. Step 6: Final answer
    x = 5,569.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.