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Finding the Fourth Proportional to 9,605.56, 13,258.16 and 6,256.72

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Solution

The fourth proportional to 9,605.56, 13,258.16 and 6,256.72 is: 8,635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,605.56 : 13,258.16 = 6,256.72 : x
  2. Step 2: Convert to fraction form
    9,605.56/13,258.16 = 6,256.72/x
  3. Step 3: Cross multiply
    9,605.56x = 13,258.16 × 6,256.72
  4. Step 4: Simplify right side
    9,605.56x = 82,952,594.84
  5. Step 5: Solve for x
    x = 82,952,594.84/9,605.56
  6. Step 6: Final answer
    x = 8,635.89

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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.