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Finding the Fourth Proportional to 58,478.99, 87,727.13 and 16,920.59

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Solution

The fourth proportional to 58,478.99, 87,727.13 and 16,920.59 is: 25,383.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,478.99 : 87,727.13 = 16,920.59 : x
  2. Step 2: Convert to fraction form
    58,478.99/87,727.13 = 16,920.59/x
  3. Step 3: Cross multiply
    58,478.99x = 87,727.13 × 16,920.59
  4. Step 4: Simplify right side
    58,478.99x = 1,484,394,714.00
  5. Step 5: Solve for x
    x = 1,484,394,714.00/58,478.99
  6. Step 6: Final answer
    x = 25,383.38

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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.