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Finding the Fourth Proportional to 64,775.46, 89,396.51 and 37,916.34

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Solution

The fourth proportional to 64,775.46, 89,396.51 and 37,916.34 is: 52,328.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,775.46 : 89,396.51 = 37,916.34 : x
  2. Step 2: Convert to fraction form
    64,775.46/89,396.51 = 37,916.34/x
  3. Step 3: Cross multiply
    64,775.46x = 89,396.51 × 37,916.34
  4. Step 4: Simplify right side
    64,775.46x = 3,389,588,467.97
  5. Step 5: Solve for x
    x = 3,389,588,467.97/64,775.46
  6. Step 6: Final answer
    x = 52,328.28

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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.