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Finding the Fourth Proportional to 45,068.76, 67,607.06 and 11,788.68

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Solution

The fourth proportional to 45,068.76, 67,607.06 and 11,788.68 is: 17,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,068.76 : 67,607.06 = 11,788.68 : x
  2. Step 2: Convert to fraction form
    45,068.76/67,607.06 = 11,788.68/x
  3. Step 3: Cross multiply
    45,068.76x = 67,607.06 × 11,788.68
  4. Step 4: Simplify right side
    45,068.76x = 796,997,996.08
  5. Step 5: Solve for x
    x = 796,997,996.08/45,068.76
  6. Step 6: Final answer
    x = 17,684.05

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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.