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Finding the Fourth Proportional to 64,341.40, 96,512.10 and 43,346.20

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Solution

The fourth proportional to 64,341.40, 96,512.10 and 43,346.20 is: 65,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,341.40 : 96,512.10 = 43,346.20 : x
  2. Step 2: Convert to fraction form
    64,341.40/96,512.10 = 43,346.20/x
  3. Step 3: Cross multiply
    64,341.40x = 96,512.10 × 43,346.20
  4. Step 4: Simplify right side
    64,341.40x = 4,183,432,789.02
  5. Step 5: Solve for x
    x = 4,183,432,789.02/64,341.40
  6. Step 6: Final answer
    x = 65,019.30

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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.