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Finding the Fourth Proportional to 9,924.63, 13,696.14 and 5,448.31

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Solution

The fourth proportional to 9,924.63, 13,696.14 and 5,448.31 is: 7,518.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,924.63 : 13,696.14 = 5,448.31 : x
  2. Step 2: Convert to fraction form
    9,924.63/13,696.14 = 5,448.31/x
  3. Step 3: Cross multiply
    9,924.63x = 13,696.14 × 5,448.31
  4. Step 4: Simplify right side
    9,924.63x = 74,620,849.11
  5. Step 5: Solve for x
    x = 74,620,849.11/9,924.63
  6. Step 6: Final answer
    x = 7,518.76

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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.