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Finding the Fourth Proportional to 58,697.80, 87,911.70 and 48,200.20

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Solution

The fourth proportional to 58,697.80, 87,911.70 and 48,200.20 is: 72,189.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,697.80 : 87,911.70 = 48,200.20 : x
  2. Step 2: Convert to fraction form
    58,697.80/87,911.70 = 48,200.20/x
  3. Step 3: Cross multiply
    58,697.80x = 87,911.70 × 48,200.20
  4. Step 4: Simplify right side
    58,697.80x = 4,237,361,522.34
  5. Step 5: Solve for x
    x = 4,237,361,522.34/58,697.80
  6. Step 6: Final answer
    x = 72,189.44

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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.