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Finding the Fourth Proportional to 8,316.72, 12,472.64 and 6,852.24

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Solution

The fourth proportional to 8,316.72, 12,472.64 and 6,852.24 is: 10,276.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.72 : 12,472.64 = 6,852.24 : x
  2. Step 2: Convert to fraction form
    8,316.72/12,472.64 = 6,852.24/x
  3. Step 3: Cross multiply
    8,316.72x = 12,472.64 × 6,852.24
  4. Step 4: Simplify right side
    8,316.72x = 85,465,522.71
  5. Step 5: Solve for x
    x = 85,465,522.71/8,316.72
  6. Step 6: Final answer
    x = 10,276.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.