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Finding the Fourth Proportional to 7,290.01, 10,060.28 and 4,103.20

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Solution

The fourth proportional to 7,290.01, 10,060.28 and 4,103.20 is: 5,662.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290.01 : 10,060.28 = 4,103.20 : x
  2. Step 2: Convert to fraction form
    7,290.01/10,060.28 = 4,103.20/x
  3. Step 3: Cross multiply
    7,290.01x = 10,060.28 × 4,103.20
  4. Step 4: Simplify right side
    7,290.01x = 41,279,340.90
  5. Step 5: Solve for x
    x = 41,279,340.90/7,290.01
  6. Step 6: Final answer
    x = 5,662.45

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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.