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Finding the Fourth Proportional to 46,991.72, 70,480.72 and 13,702.84

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Solution

The fourth proportional to 46,991.72, 70,480.72 and 13,702.84 is: 20,552.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,991.72 : 70,480.72 = 13,702.84 : x
  2. Step 2: Convert to fraction form
    46,991.72/70,480.72 = 13,702.84/x
  3. Step 3: Cross multiply
    46,991.72x = 70,480.72 × 13,702.84
  4. Step 4: Simplify right side
    46,991.72x = 965,786,029.24
  5. Step 5: Solve for x
    x = 965,786,029.24/46,991.72
  6. Step 6: Final answer
    x = 20,552.26

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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.