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Finding the Fourth Proportional to 58,399.20, 87,598.80 and 39,736.80

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Solution

The fourth proportional to 58,399.20, 87,598.80 and 39,736.80 is: 59,605.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,399.20 : 87,598.80 = 39,736.80 : x
  2. Step 2: Convert to fraction form
    58,399.20/87,598.80 = 39,736.80/x
  3. Step 3: Cross multiply
    58,399.20x = 87,598.80 × 39,736.80
  4. Step 4: Simplify right side
    58,399.20x = 3,480,895,995.84
  5. Step 5: Solve for x
    x = 3,480,895,995.84/58,399.20
  6. Step 6: Final answer
    x = 59,605.20

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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.