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Finding the Fourth Proportional to 8,437.22, 11,646.64 and 7,551.48

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Solution

The fourth proportional to 8,437.22, 11,646.64 and 7,551.48 is: 10,423.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,437.22 : 11,646.64 = 7,551.48 : x
  2. Step 2: Convert to fraction form
    8,437.22/11,646.64 = 7,551.48/x
  3. Step 3: Cross multiply
    8,437.22x = 11,646.64 × 7,551.48
  4. Step 4: Simplify right side
    8,437.22x = 87,949,369.03
  5. Step 5: Solve for x
    x = 87,949,369.03/8,437.22
  6. Step 6: Final answer
    x = 10,423.97

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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.