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Finding the Fourth Proportional to 56,118.40, 84,166.80 and 16,676.80

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Solution

The fourth proportional to 56,118.40, 84,166.80 and 16,676.80 is: 25,011.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,118.40 : 84,166.80 = 16,676.80 : x
  2. Step 2: Convert to fraction form
    56,118.40/84,166.80 = 16,676.80/x
  3. Step 3: Cross multiply
    56,118.40x = 84,166.80 × 16,676.80
  4. Step 4: Simplify right side
    56,118.40x = 1,403,632,890.24
  5. Step 5: Solve for x
    x = 1,403,632,890.24/56,118.40
  6. Step 6: Final answer
    x = 25,011.99

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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.