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Finding the Fourth Proportional to 9,686.91, 13,367.93 and 5,495.16

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Solution

The fourth proportional to 9,686.91, 13,367.93 and 5,495.16 is: 7,583.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,686.91 : 13,367.93 = 5,495.16 : x
  2. Step 2: Convert to fraction form
    9,686.91/13,367.93 = 5,495.16/x
  3. Step 3: Cross multiply
    9,686.91x = 13,367.93 × 5,495.16
  4. Step 4: Simplify right side
    9,686.91x = 73,458,886.74
  5. Step 5: Solve for x
    x = 73,458,886.74/9,686.91
  6. Step 6: Final answer
    x = 7,583.31

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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.