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Finding the Fourth Proportional to 58,565.40, 87,859.66 and 19,111.92

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Solution

The fourth proportional to 58,565.40, 87,859.66 and 19,111.92 is: 28,671.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,565.40 : 87,859.66 = 19,111.92 : x
  2. Step 2: Convert to fraction form
    58,565.40/87,859.66 = 19,111.92/x
  3. Step 3: Cross multiply
    58,565.40x = 87,859.66 × 19,111.92
  4. Step 4: Simplify right side
    58,565.40x = 1,679,166,793.15
  5. Step 5: Solve for x
    x = 1,679,166,793.15/58,565.40
  6. Step 6: Final answer
    x = 28,671.65

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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.