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Finding the Fourth Proportional to 8,532.12, 12,776.04 and 7,307.40

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Solution

The fourth proportional to 8,532.12, 12,776.04 and 7,307.40 is: 10,942.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532.12 : 12,776.04 = 7,307.40 : x
  2. Step 2: Convert to fraction form
    8,532.12/12,776.04 = 7,307.40/x
  3. Step 3: Cross multiply
    8,532.12x = 12,776.04 × 7,307.40
  4. Step 4: Simplify right side
    8,532.12x = 93,359,634.70
  5. Step 5: Solve for x
    x = 93,359,634.70/8,532.12
  6. Step 6: Final answer
    x = 10,942.14

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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.