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Finding the Fourth Proportional to 58,206.80, 80,297.16 and 39,342.80

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Solution

The fourth proportional to 58,206.80, 80,297.16 and 39,342.80 is: 54,273.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,206.80 : 80,297.16 = 39,342.80 : x
  2. Step 2: Convert to fraction form
    58,206.80/80,297.16 = 39,342.80/x
  3. Step 3: Cross multiply
    58,206.80x = 80,297.16 × 39,342.80
  4. Step 4: Simplify right side
    58,206.80x = 3,159,115,106.45
  5. Step 5: Solve for x
    x = 3,159,115,106.45/58,206.80
  6. Step 6: Final answer
    x = 54,273.99

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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.