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Finding the Fourth Proportional to 12,068.60, 18,064.62 and 10,512.18

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Solution

The fourth proportional to 12,068.60, 18,064.62 and 10,512.18 is: 15,734.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,068.60 : 18,064.62 = 10,512.18 : x
  2. Step 2: Convert to fraction form
    12,068.60/18,064.62 = 10,512.18/x
  3. Step 3: Cross multiply
    12,068.60x = 18,064.62 × 10,512.18
  4. Step 4: Simplify right side
    12,068.60x = 189,898,537.07
  5. Step 5: Solve for x
    x = 189,898,537.07/12,068.60
  6. Step 6: Final answer
    x = 15,734.93

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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.