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Finding the Fourth Proportional to 7,626.72, 10,521.28 and 4,973.12

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Solution

The fourth proportional to 7,626.72, 10,521.28 and 4,973.12 is: 6,860.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,626.72 : 10,521.28 = 4,973.12 : x
  2. Step 2: Convert to fraction form
    7,626.72/10,521.28 = 4,973.12/x
  3. Step 3: Cross multiply
    7,626.72x = 10,521.28 × 4,973.12
  4. Step 4: Simplify right side
    7,626.72x = 52,323,587.99
  5. Step 5: Solve for x
    x = 52,323,587.99/7,626.72
  6. Step 6: Final answer
    x = 6,860.56

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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.