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Finding the Fourth Proportional to 18,392.10, 27,602.55 and 8,532.60

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Solution

The fourth proportional to 18,392.10, 27,602.55 and 8,532.60 is: 12,805.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.10 : 27,602.55 = 8,532.60 : x
  2. Step 2: Convert to fraction form
    18,392.10/27,602.55 = 8,532.60/x
  3. Step 3: Cross multiply
    18,392.10x = 27,602.55 × 8,532.60
  4. Step 4: Simplify right side
    18,392.10x = 235,521,518.13
  5. Step 5: Solve for x
    x = 235,521,518.13/18,392.10
  6. Step 6: Final answer
    x = 12,805.58

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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.