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Finding the Fourth Proportional to 8,366.64, 12,525.29 and 7,328.67

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Solution

The fourth proportional to 8,366.64, 12,525.29 and 7,328.67 is: 10,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,366.64 : 12,525.29 = 7,328.67 : x
  2. Step 2: Convert to fraction form
    8,366.64/12,525.29 = 7,328.67/x
  3. Step 3: Cross multiply
    8,366.64x = 12,525.29 × 7,328.67
  4. Step 4: Simplify right side
    8,366.64x = 91,793,688.42
  5. Step 5: Solve for x
    x = 91,793,688.42/8,366.64
  6. Step 6: Final answer
    x = 10,971.40

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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.