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Finding the Fourth Proportional to 13,437.24, 18,544.86 and 7,695.24

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Solution

The fourth proportional to 13,437.24, 18,544.86 and 7,695.24 is: 10,620.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.24 : 18,544.86 = 7,695.24 : x
  2. Step 2: Convert to fraction form
    13,437.24/18,544.86 = 7,695.24/x
  3. Step 3: Cross multiply
    13,437.24x = 18,544.86 × 7,695.24
  4. Step 4: Simplify right side
    13,437.24x = 142,707,148.47
  5. Step 5: Solve for x
    x = 142,707,148.47/13,437.24
  6. Step 6: Final answer
    x = 10,620.27

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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.