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Finding the Fourth Proportional to 18,068.34, 27,079.86 and 8,706.60

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Solution

The fourth proportional to 18,068.34, 27,079.86 and 8,706.60 is: 13,048.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,068.34 : 27,079.86 = 8,706.60 : x
  2. Step 2: Convert to fraction form
    18,068.34/27,079.86 = 8,706.60/x
  3. Step 3: Cross multiply
    18,068.34x = 27,079.86 × 8,706.60
  4. Step 4: Simplify right side
    18,068.34x = 235,773,509.08
  5. Step 5: Solve for x
    x = 235,773,509.08/18,068.34
  6. Step 6: Final answer
    x = 13,048.99

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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.