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Finding the Fourth Proportional to 58,178.80, 87,311.40 and 23,143.60

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Solution

The fourth proportional to 58,178.80, 87,311.40 and 23,143.60 is: 34,732.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,178.80 : 87,311.40 = 23,143.60 : x
  2. Step 2: Convert to fraction form
    58,178.80/87,311.40 = 23,143.60/x
  3. Step 3: Cross multiply
    58,178.80x = 87,311.40 × 23,143.60
  4. Step 4: Simplify right side
    58,178.80x = 2,020,700,117.04
  5. Step 5: Solve for x
    x = 2,020,700,117.04/58,178.80
  6. Step 6: Final answer
    x = 34,732.59

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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.