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Finding the Fourth Proportional to 47,335.92, 65,311.92 and 28,934.38

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Solution

The fourth proportional to 47,335.92, 65,311.92 and 28,934.38 is: 39,922.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,335.92 : 65,311.92 = 28,934.38 : x
  2. Step 2: Convert to fraction form
    47,335.92/65,311.92 = 28,934.38/x
  3. Step 3: Cross multiply
    47,335.92x = 65,311.92 × 28,934.38
  4. Step 4: Simplify right side
    47,335.92x = 1,889,759,911.81
  5. Step 5: Solve for x
    x = 1,889,759,911.81/47,335.92
  6. Step 6: Final answer
    x = 39,922.32

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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.