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Finding the Fourth Proportional to 64,669.76, 89,243.62 and 35,988.94

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Solution

The fourth proportional to 64,669.76, 89,243.62 and 35,988.94 is: 49,664.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,669.76 : 89,243.62 = 35,988.94 : x
  2. Step 2: Convert to fraction form
    64,669.76/89,243.62 = 35,988.94/x
  3. Step 3: Cross multiply
    64,669.76x = 89,243.62 × 35,988.94
  4. Step 4: Simplify right side
    64,669.76x = 3,211,783,285.56
  5. Step 5: Solve for x
    x = 3,211,783,285.56/64,669.76
  6. Step 6: Final answer
    x = 49,664.38

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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.