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Finding the Fourth Proportional to 47,283.92, 70,925.92 and 11,745.20

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Solution

The fourth proportional to 47,283.92, 70,925.92 and 11,745.20 is: 17,617.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,283.92 : 70,925.92 = 11,745.20 : x
  2. Step 2: Convert to fraction form
    47,283.92/70,925.92 = 11,745.20/x
  3. Step 3: Cross multiply
    47,283.92x = 70,925.92 × 11,745.20
  4. Step 4: Simplify right side
    47,283.92x = 833,039,115.58
  5. Step 5: Solve for x
    x = 833,039,115.58/47,283.92
  6. Step 6: Final answer
    x = 17,617.81

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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.