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Finding the Fourth Proportional to 58,365.99, 87,561.78 and 18,927.09

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Solution

The fourth proportional to 58,365.99, 87,561.78 and 18,927.09 is: 28,394.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,365.99 : 87,561.78 = 18,927.09 : x
  2. Step 2: Convert to fraction form
    58,365.99/87,561.78 = 18,927.09/x
  3. Step 3: Cross multiply
    58,365.99x = 87,561.78 × 18,927.09
  4. Step 4: Simplify right side
    58,365.99x = 1,657,289,690.62
  5. Step 5: Solve for x
    x = 1,657,289,690.62/58,365.99
  6. Step 6: Final answer
    x = 28,394.78

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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.