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Finding the Fourth Proportional to 76,607.77, 114,964.50 and 26,688.28

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Solution

The fourth proportional to 76,607.77, 114,964.50 and 26,688.28 is: 40,050.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,607.77 : 114,964.50 = 26,688.28 : x
  2. Step 2: Convert to fraction form
    76,607.77/114,964.50 = 26,688.28/x
  3. Step 3: Cross multiply
    76,607.77x = 114,964.50 × 26,688.28
  4. Step 4: Simplify right side
    76,607.77x = 3,068,204,766.06
  5. Step 5: Solve for x
    x = 3,068,204,766.06/76,607.77
  6. Step 6: Final answer
    x = 40,050.83

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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.