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Finding the Fourth Proportional to 7,063.42, 9,748.40 and 4,079.26

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Solution

The fourth proportional to 7,063.42, 9,748.40 and 4,079.26 is: 5,629.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,063.42 : 9,748.40 = 4,079.26 : x
  2. Step 2: Convert to fraction form
    7,063.42/9,748.40 = 4,079.26/x
  3. Step 3: Cross multiply
    7,063.42x = 9,748.40 × 4,079.26
  4. Step 4: Simplify right side
    7,063.42x = 39,766,258.18
  5. Step 5: Solve for x
    x = 39,766,258.18/7,063.42
  6. Step 6: Final answer
    x = 5,629.89

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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.