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Finding the Fourth Proportional to 8,501.32, 12,751.98 and 5,578.94

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Solution

The fourth proportional to 8,501.32, 12,751.98 and 5,578.94 is: 8,368.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.32 : 12,751.98 = 5,578.94 : x
  2. Step 2: Convert to fraction form
    8,501.32/12,751.98 = 5,578.94/x
  3. Step 3: Cross multiply
    8,501.32x = 12,751.98 × 5,578.94
  4. Step 4: Simplify right side
    8,501.32x = 71,142,531.30
  5. Step 5: Solve for x
    x = 71,142,531.30/8,501.32
  6. Step 6: Final answer
    x = 8,368.41

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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.