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Finding the Fourth Proportional to 40,433.70, 60,648.48 and 15,485.70

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Solution

The fourth proportional to 40,433.70, 60,648.48 and 15,485.70 is: 23,227.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,433.70 : 60,648.48 = 15,485.70 : x
  2. Step 2: Convert to fraction form
    40,433.70/60,648.48 = 15,485.70/x
  3. Step 3: Cross multiply
    40,433.70x = 60,648.48 × 15,485.70
  4. Step 4: Simplify right side
    40,433.70x = 939,184,166.74
  5. Step 5: Solve for x
    x = 939,184,166.74/40,433.70
  6. Step 6: Final answer
    x = 23,227.76

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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.