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Finding the Fourth Proportional to 64,401.54, 96,630.12 and 34,840.20

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Solution

The fourth proportional to 64,401.54, 96,630.12 and 34,840.20 is: 52,275.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,401.54 : 96,630.12 = 34,840.20 : x
  2. Step 2: Convert to fraction form
    64,401.54/96,630.12 = 34,840.20/x
  3. Step 3: Cross multiply
    64,401.54x = 96,630.12 × 34,840.20
  4. Step 4: Simplify right side
    64,401.54x = 3,366,612,706.82
  5. Step 5: Solve for x
    x = 3,366,612,706.82/64,401.54
  6. Step 6: Final answer
    x = 52,275.34

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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.