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Finding the Fourth Proportional to 9,953.60, 14,929.54 and 3,379.64

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Solution

The fourth proportional to 9,953.60, 14,929.54 and 3,379.64 is: 5,069.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,953.60 : 14,929.54 = 3,379.64 : x
  2. Step 2: Convert to fraction form
    9,953.60/14,929.54 = 3,379.64/x
  3. Step 3: Cross multiply
    9,953.60x = 14,929.54 × 3,379.64
  4. Step 4: Simplify right side
    9,953.60x = 50,456,470.57
  5. Step 5: Solve for x
    x = 50,456,470.57/9,953.60
  6. Step 6: Final answer
    x = 5,069.17

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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.