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Finding the Fourth Proportional to 58,266.80, 87,408.84 and 18,810.80

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Solution

The fourth proportional to 58,266.80, 87,408.84 and 18,810.80 is: 28,218.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,266.80 : 87,408.84 = 18,810.80 : x
  2. Step 2: Convert to fraction form
    58,266.80/87,408.84 = 18,810.80/x
  3. Step 3: Cross multiply
    58,266.80x = 87,408.84 × 18,810.80
  4. Step 4: Simplify right side
    58,266.80x = 1,644,230,207.47
  5. Step 5: Solve for x
    x = 1,644,230,207.47/58,266.80
  6. Step 6: Final answer
    x = 28,218.99

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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.