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Finding the Fourth Proportional to 8,736.72, 12,056.60 and 6,085.60

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Solution

The fourth proportional to 8,736.72, 12,056.60 and 6,085.60 is: 8,398.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.72 : 12,056.60 = 6,085.60 : x
  2. Step 2: Convert to fraction form
    8,736.72/12,056.60 = 6,085.60/x
  3. Step 3: Cross multiply
    8,736.72x = 12,056.60 × 6,085.60
  4. Step 4: Simplify right side
    8,736.72x = 73,371,644.96
  5. Step 5: Solve for x
    x = 73,371,644.96/8,736.72
  6. Step 6: Final answer
    x = 8,398.08

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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.