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Finding the Fourth Proportional to 9,771.10, 14,655.12 and 2,751.64

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Solution

The fourth proportional to 9,771.10, 14,655.12 and 2,751.64 is: 4,127.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,771.10 : 14,655.12 = 2,751.64 : x
  2. Step 2: Convert to fraction form
    9,771.10/14,655.12 = 2,751.64/x
  3. Step 3: Cross multiply
    9,771.10x = 14,655.12 × 2,751.64
  4. Step 4: Simplify right side
    9,771.10x = 40,325,614.40
  5. Step 5: Solve for x
    x = 40,325,614.40/9,771.10
  6. Step 6: Final answer
    x = 4,127.03

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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.