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Finding the Fourth Proportional to 10,907.80, 16,359.36 and 4,983.01

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Solution

The fourth proportional to 10,907.80, 16,359.36 and 4,983.01 is: 7,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,907.80 : 16,359.36 = 4,983.01 : x
  2. Step 2: Convert to fraction form
    10,907.80/16,359.36 = 4,983.01/x
  3. Step 3: Cross multiply
    10,907.80x = 16,359.36 × 4,983.01
  4. Step 4: Simplify right side
    10,907.80x = 81,518,854.47
  5. Step 5: Solve for x
    x = 81,518,854.47/10,907.80
  6. Step 6: Final answer
    x = 7,473.45

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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.