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Finding the Fourth Proportional to 22,175.88, 30,607.96 and 12,749.92

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Solution

The fourth proportional to 22,175.88, 30,607.96 and 12,749.92 is: 17,597.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,175.88 : 30,607.96 = 12,749.92 : x
  2. Step 2: Convert to fraction form
    22,175.88/30,607.96 = 12,749.92/x
  3. Step 3: Cross multiply
    22,175.88x = 30,607.96 × 12,749.92
  4. Step 4: Simplify right side
    22,175.88x = 390,249,041.36
  5. Step 5: Solve for x
    x = 390,249,041.36/22,175.88
  6. Step 6: Final answer
    x = 17,597.91

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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.