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Finding the Fourth Proportional to 63,971.20, 96,004.80 and 32,790.40

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Solution

The fourth proportional to 63,971.20, 96,004.80 and 32,790.40 is: 49,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,971.20 : 96,004.80 = 32,790.40 : x
  2. Step 2: Convert to fraction form
    63,971.20/96,004.80 = 32,790.40/x
  3. Step 3: Cross multiply
    63,971.20x = 96,004.80 × 32,790.40
  4. Step 4: Simplify right side
    63,971.20x = 3,148,035,793.92
  5. Step 5: Solve for x
    x = 3,148,035,793.92/63,971.20
  6. Step 6: Final answer
    x = 49,210.20

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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.