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Finding the Fourth Proportional to 58,012.80, 87,019.20 and 34,627.20

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Solution

The fourth proportional to 58,012.80, 87,019.20 and 34,627.20 is: 51,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,012.80 : 87,019.20 = 34,627.20 : x
  2. Step 2: Convert to fraction form
    58,012.80/87,019.20 = 34,627.20/x
  3. Step 3: Cross multiply
    58,012.80x = 87,019.20 × 34,627.20
  4. Step 4: Simplify right side
    58,012.80x = 3,013,231,242.24
  5. Step 5: Solve for x
    x = 3,013,231,242.24/58,012.80
  6. Step 6: Final answer
    x = 51,940.80

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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.