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Finding the Fourth Proportional to 12,607.59, 17,398.32 and 6,942.22

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Solution

The fourth proportional to 12,607.59, 17,398.32 and 6,942.22 is: 9,580.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.59 : 17,398.32 = 6,942.22 : x
  2. Step 2: Convert to fraction form
    12,607.59/17,398.32 = 6,942.22/x
  3. Step 3: Cross multiply
    12,607.59x = 17,398.32 × 6,942.22
  4. Step 4: Simplify right side
    12,607.59x = 120,782,965.07
  5. Step 5: Solve for x
    x = 120,782,965.07/12,607.59
  6. Step 6: Final answer
    x = 9,580.18

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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.