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Finding the Fourth Proportional to 58,664.40, 87,802.20 and 53,998.80

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Solution

The fourth proportional to 58,664.40, 87,802.20 and 53,998.80 is: 80,819.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,664.40 : 87,802.20 = 53,998.80 : x
  2. Step 2: Convert to fraction form
    58,664.40/87,802.20 = 53,998.80/x
  3. Step 3: Cross multiply
    58,664.40x = 87,802.20 × 53,998.80
  4. Step 4: Simplify right side
    58,664.40x = 4,741,213,437.36
  5. Step 5: Solve for x
    x = 4,741,213,437.36/58,664.40
  6. Step 6: Final answer
    x = 80,819.26

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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.