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Finding the Fourth Proportional to 36,868.60, 55,302.90 and 9,166.60

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Solution

The fourth proportional to 36,868.60, 55,302.90 and 9,166.60 is: 13,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,868.60 : 55,302.90 = 9,166.60 : x
  2. Step 2: Convert to fraction form
    36,868.60/55,302.90 = 9,166.60/x
  3. Step 3: Cross multiply
    36,868.60x = 55,302.90 × 9,166.60
  4. Step 4: Simplify right side
    36,868.60x = 506,939,563.14
  5. Step 5: Solve for x
    x = 506,939,563.14/36,868.60
  6. Step 6: Final answer
    x = 13,749.90

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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.