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Finding the Fourth Proportional to 58,201.86, 87,302.79 and 18,759.72

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Solution

The fourth proportional to 58,201.86, 87,302.79 and 18,759.72 is: 28,139.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,201.86 : 87,302.79 = 18,759.72 : x
  2. Step 2: Convert to fraction form
    58,201.86/87,302.79 = 18,759.72/x
  3. Step 3: Cross multiply
    58,201.86x = 87,302.79 × 18,759.72
  4. Step 4: Simplify right side
    58,201.86x = 1,637,775,895.62
  5. Step 5: Solve for x
    x = 1,637,775,895.62/58,201.86
  6. Step 6: Final answer
    x = 28,139.58

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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.