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Finding the Fourth Proportional to 9,845.40, 14,768.10 and 4,661.40

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Solution

The fourth proportional to 9,845.40, 14,768.10 and 4,661.40 is: 6,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,845.40 : 14,768.10 = 4,661.40 : x
  2. Step 2: Convert to fraction form
    9,845.40/14,768.10 = 4,661.40/x
  3. Step 3: Cross multiply
    9,845.40x = 14,768.10 × 4,661.40
  4. Step 4: Simplify right side
    9,845.40x = 68,840,021.34
  5. Step 5: Solve for x
    x = 68,840,021.34/9,845.40
  6. Step 6: Final answer
    x = 6,992.10

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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.