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Finding the Fourth Proportional to 8,532.76, 12,800.88 and 3,602.40

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Solution

The fourth proportional to 8,532.76, 12,800.88 and 3,602.40 is: 5,404.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532.76 : 12,800.88 = 3,602.40 : x
  2. Step 2: Convert to fraction form
    8,532.76/12,800.88 = 3,602.40/x
  3. Step 3: Cross multiply
    8,532.76x = 12,800.88 × 3,602.40
  4. Step 4: Simplify right side
    8,532.76x = 46,113,890.11
  5. Step 5: Solve for x
    x = 46,113,890.11/8,532.76
  6. Step 6: Final answer
    x = 5,404.33

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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.