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Finding the Fourth Proportional to 60,556.80, 90,835.20 and 16,190.40

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Solution

The fourth proportional to 60,556.80, 90,835.20 and 16,190.40 is: 24,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,556.80 : 90,835.20 = 16,190.40 : x
  2. Step 2: Convert to fraction form
    60,556.80/90,835.20 = 16,190.40/x
  3. Step 3: Cross multiply
    60,556.80x = 90,835.20 × 16,190.40
  4. Step 4: Simplify right side
    60,556.80x = 1,470,658,222.08
  5. Step 5: Solve for x
    x = 1,470,658,222.08/60,556.80
  6. Step 6: Final answer
    x = 24,285.60

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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.