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Finding the Fourth Proportional to 47,709.84, 65,845.62 and 28,846.92

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Solution

The fourth proportional to 47,709.84, 65,845.62 and 28,846.92 is: 39,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,709.84 : 65,845.62 = 28,846.92 : x
  2. Step 2: Convert to fraction form
    47,709.84/65,845.62 = 28,846.92/x
  3. Step 3: Cross multiply
    47,709.84x = 65,845.62 × 28,846.92
  4. Step 4: Simplify right side
    47,709.84x = 1,899,443,332.49
  5. Step 5: Solve for x
    x = 1,899,443,332.49/47,709.84
  6. Step 6: Final answer
    x = 39,812.40

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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.