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Finding the Fourth Proportional to 9,403.70, 14,105.55 and 4,738.10

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Solution

The fourth proportional to 9,403.70, 14,105.55 and 4,738.10 is: 7,107.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.70 : 14,105.55 = 4,738.10 : x
  2. Step 2: Convert to fraction form
    9,403.70/14,105.55 = 4,738.10/x
  3. Step 3: Cross multiply
    9,403.70x = 14,105.55 × 4,738.10
  4. Step 4: Simplify right side
    9,403.70x = 66,833,506.46
  5. Step 5: Solve for x
    x = 66,833,506.46/9,403.70
  6. Step 6: Final answer
    x = 7,107.15

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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.