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Finding the Fourth Proportional to 22,127.45, 30,536.80 and 12,056.45

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Solution

The fourth proportional to 22,127.45, 30,536.80 and 12,056.45 is: 16,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,127.45 : 30,536.80 = 12,056.45 : x
  2. Step 2: Convert to fraction form
    22,127.45/30,536.80 = 12,056.45/x
  3. Step 3: Cross multiply
    22,127.45x = 30,536.80 × 12,056.45
  4. Step 4: Simplify right side
    22,127.45x = 368,165,219.53
  5. Step 5: Solve for x
    x = 368,165,219.53/22,127.45
  6. Step 6: Final answer
    x = 16,638.40

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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.