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Finding the Fourth Proportional to 9,475.63, 13,071.12 and 6,647.22

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Solution

The fourth proportional to 9,475.63, 13,071.12 and 6,647.22 is: 9,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,475.63 : 13,071.12 = 6,647.22 : x
  2. Step 2: Convert to fraction form
    9,475.63/13,071.12 = 6,647.22/x
  3. Step 3: Cross multiply
    9,475.63x = 13,071.12 × 6,647.22
  4. Step 4: Simplify right side
    9,475.63x = 86,886,544.93
  5. Step 5: Solve for x
    x = 86,886,544.93/9,475.63
  6. Step 6: Final answer
    x = 9,169.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.