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Finding the Fourth Proportional to 64,020.80, 96,031.20 and 22,462.40

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Solution

The fourth proportional to 64,020.80, 96,031.20 and 22,462.40 is: 33,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,020.80 : 96,031.20 = 22,462.40 : x
  2. Step 2: Convert to fraction form
    64,020.80/96,031.20 = 22,462.40/x
  3. Step 3: Cross multiply
    64,020.80x = 96,031.20 × 22,462.40
  4. Step 4: Simplify right side
    64,020.80x = 2,157,091,226.88
  5. Step 5: Solve for x
    x = 2,157,091,226.88/64,020.80
  6. Step 6: Final answer
    x = 33,693.60

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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.