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Finding the Fourth Proportional to 9,625.28, 14,445.48 and 4,945.10

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Solution

The fourth proportional to 9,625.28, 14,445.48 and 4,945.10 is: 7,421.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,625.28 : 14,445.48 = 4,945.10 : x
  2. Step 2: Convert to fraction form
    9,625.28/14,445.48 = 4,945.10/x
  3. Step 3: Cross multiply
    9,625.28x = 14,445.48 × 4,945.10
  4. Step 4: Simplify right side
    9,625.28x = 71,434,343.15
  5. Step 5: Solve for x
    x = 71,434,343.15/9,625.28
  6. Step 6: Final answer
    x = 7,421.53

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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.