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Finding the Fourth Proportional to 7,641.29, 10,551.21 and 6,225.21

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Solution

The fourth proportional to 7,641.29, 10,551.21 and 6,225.21 is: 8,595.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641.29 : 10,551.21 = 6,225.21 : x
  2. Step 2: Convert to fraction form
    7,641.29/10,551.21 = 6,225.21/x
  3. Step 3: Cross multiply
    7,641.29x = 10,551.21 × 6,225.21
  4. Step 4: Simplify right side
    7,641.29x = 65,683,498.00
  5. Step 5: Solve for x
    x = 65,683,498.00/7,641.29
  6. Step 6: Final answer
    x = 8,595.87

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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.