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Finding the Fourth Proportional to 36,200.40, 54,300.60 and 9,907.80

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Solution

The fourth proportional to 36,200.40, 54,300.60 and 9,907.80 is: 14,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,200.40 : 54,300.60 = 9,907.80 : x
  2. Step 2: Convert to fraction form
    36,200.40/54,300.60 = 9,907.80/x
  3. Step 3: Cross multiply
    36,200.40x = 54,300.60 × 9,907.80
  4. Step 4: Simplify right side
    36,200.40x = 537,999,484.68
  5. Step 5: Solve for x
    x = 537,999,484.68/36,200.40
  6. Step 6: Final answer
    x = 14,861.70

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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.