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Finding the Fourth Proportional to 30,504.55, 45,755.47 and 8,317.93

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Solution

The fourth proportional to 30,504.55, 45,755.47 and 8,317.93 is: 12,476.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,504.55 : 45,755.47 = 8,317.93 : x
  2. Step 2: Convert to fraction form
    30,504.55/45,755.47 = 8,317.93/x
  3. Step 3: Cross multiply
    30,504.55x = 45,755.47 × 8,317.93
  4. Step 4: Simplify right side
    30,504.55x = 380,590,796.58
  5. Step 5: Solve for x
    x = 380,590,796.58/30,504.55
  6. Step 6: Final answer
    x = 12,476.53

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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.