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Finding the Fourth Proportional to 13,362.93, 18,446.52 and 8,329.65

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Solution

The fourth proportional to 13,362.93, 18,446.52 and 8,329.65 is: 11,498.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.93 : 18,446.52 = 8,329.65 : x
  2. Step 2: Convert to fraction form
    13,362.93/18,446.52 = 8,329.65/x
  3. Step 3: Cross multiply
    13,362.93x = 18,446.52 × 8,329.65
  4. Step 4: Simplify right side
    13,362.93x = 153,653,055.32
  5. Step 5: Solve for x
    x = 153,653,055.32/13,362.93
  6. Step 6: Final answer
    x = 11,498.46

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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.