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Finding the Fourth Proportional to 58,574.86, 87,870.87 and 18,580.50

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Solution

The fourth proportional to 58,574.86, 87,870.87 and 18,580.50 is: 27,873.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,574.86 : 87,870.87 = 18,580.50 : x
  2. Step 2: Convert to fraction form
    58,574.86/87,870.87 = 18,580.50/x
  3. Step 3: Cross multiply
    58,574.86x = 87,870.87 × 18,580.50
  4. Step 4: Simplify right side
    58,574.86x = 1,632,684,700.04
  5. Step 5: Solve for x
    x = 1,632,684,700.04/58,574.86
  6. Step 6: Final answer
    x = 27,873.47

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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.