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Finding the Fourth Proportional to 64,216.10, 96,324.15 and 43,220.90

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Solution

The fourth proportional to 64,216.10, 96,324.15 and 43,220.90 is: 64,831.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,216.10 : 96,324.15 = 43,220.90 : x
  2. Step 2: Convert to fraction form
    64,216.10/96,324.15 = 43,220.90/x
  3. Step 3: Cross multiply
    64,216.10x = 96,324.15 × 43,220.90
  4. Step 4: Simplify right side
    64,216.10x = 4,163,216,454.74
  5. Step 5: Solve for x
    x = 4,163,216,454.74/64,216.10
  6. Step 6: Final answer
    x = 64,831.35

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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.