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Finding the Fourth Proportional to 65,713.92, 90,651.52 and 44,485.76

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Solution

The fourth proportional to 65,713.92, 90,651.52 and 44,485.76 is: 61,367.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,713.92 : 90,651.52 = 44,485.76 : x
  2. Step 2: Convert to fraction form
    65,713.92/90,651.52 = 44,485.76/x
  3. Step 3: Cross multiply
    65,713.92x = 90,651.52 × 44,485.76
  4. Step 4: Simplify right side
    65,713.92x = 4,032,701,762.36
  5. Step 5: Solve for x
    x = 4,032,701,762.36/65,713.92
  6. Step 6: Final answer
    x = 61,367.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.