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Finding the Fourth Proportional to 22,616.76, 31,210.90 and 12,544.94

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Solution

The fourth proportional to 22,616.76, 31,210.90 and 12,544.94 is: 17,311.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,616.76 : 31,210.90 = 12,544.94 : x
  2. Step 2: Convert to fraction form
    22,616.76/31,210.90 = 12,544.94/x
  3. Step 3: Cross multiply
    22,616.76x = 31,210.90 × 12,544.94
  4. Step 4: Simplify right side
    22,616.76x = 391,538,914.51
  5. Step 5: Solve for x
    x = 391,538,914.51/22,616.76
  6. Step 6: Final answer
    x = 17,311.89

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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.