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Finding the Fourth Proportional to 18,562.69, 27,830.80 and 8,696.59

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Solution

The fourth proportional to 18,562.69, 27,830.80 and 8,696.59 is: 13,038.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,562.69 : 27,830.80 = 8,696.59 : x
  2. Step 2: Convert to fraction form
    18,562.69/27,830.80 = 8,696.59/x
  3. Step 3: Cross multiply
    18,562.69x = 27,830.80 × 8,696.59
  4. Step 4: Simplify right side
    18,562.69x = 242,033,056.97
  5. Step 5: Solve for x
    x = 242,033,056.97/18,562.69
  6. Step 6: Final answer
    x = 13,038.68

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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.