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Finding the Fourth Proportional to 58,376, 87,541.32 and 18,923.60

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Solution

The fourth proportional to 58,376, 87,541.32 and 18,923.60 is: 28,378.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,376 : 87,541.32 = 18,923.60 : x
  2. Step 2: Convert to fraction form
    58,376/87,541.32 = 18,923.60/x
  3. Step 3: Cross multiply
    58,376x = 87,541.32 × 18,923.60
  4. Step 4: Simplify right side
    58,376x = 1,656,596,923.15
  5. Step 5: Solve for x
    x = 1,656,596,923.15/58,376
  6. Step 6: Final answer
    x = 28,378.05

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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.