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Finding the Fourth Proportional to 64,216.40, 96,209.40 and 55,000.40

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Solution

The fourth proportional to 64,216.40, 96,209.40 and 55,000.40 is: 82,401.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,216.40 : 96,209.40 = 55,000.40 : x
  2. Step 2: Convert to fraction form
    64,216.40/96,209.40 = 55,000.40/x
  3. Step 3: Cross multiply
    64,216.40x = 96,209.40 × 55,000.40
  4. Step 4: Simplify right side
    64,216.40x = 5,291,555,483.76
  5. Step 5: Solve for x
    x = 5,291,555,483.76/64,216.40
  6. Step 6: Final answer
    x = 82,401.93

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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.