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Finding the Fourth Proportional to 8,935.22, 13,381.64 and 7,080.37

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Solution

The fourth proportional to 8,935.22, 13,381.64 and 7,080.37 is: 10,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.22 : 13,381.64 = 7,080.37 : x
  2. Step 2: Convert to fraction form
    8,935.22/13,381.64 = 7,080.37/x
  3. Step 3: Cross multiply
    8,935.22x = 13,381.64 × 7,080.37
  4. Step 4: Simplify right side
    8,935.22x = 94,746,920.10
  5. Step 5: Solve for x
    x = 94,746,920.10/8,935.22
  6. Step 6: Final answer
    x = 10,603.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.