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Finding the Fourth Proportional to 46,995.50, 70,520.79 and 18,911.18

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Solution

The fourth proportional to 46,995.50, 70,520.79 and 18,911.18 is: 28,377.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,995.50 : 70,520.79 = 18,911.18 : x
  2. Step 2: Convert to fraction form
    46,995.50/70,520.79 = 18,911.18/x
  3. Step 3: Cross multiply
    46,995.50x = 70,520.79 × 18,911.18
  4. Step 4: Simplify right side
    46,995.50x = 1,333,631,353.43
  5. Step 5: Solve for x
    x = 1,333,631,353.43/46,995.50
  6. Step 6: Final answer
    x = 28,377.85

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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.