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Finding the Fourth Proportional to 64,775.96, 89,397.20 and 37,916.84

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Solution

The fourth proportional to 64,775.96, 89,397.20 and 37,916.84 is: 52,328.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,775.96 : 89,397.20 = 37,916.84 : x
  2. Step 2: Convert to fraction form
    64,775.96/89,397.20 = 37,916.84/x
  3. Step 3: Cross multiply
    64,775.96x = 89,397.20 × 37,916.84
  4. Step 4: Simplify right side
    64,775.96x = 3,389,659,328.85
  5. Step 5: Solve for x
    x = 3,389,659,328.85/64,775.96
  6. Step 6: Final answer
    x = 52,328.97

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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.