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Finding the Fourth Proportional to 9,415.76, 14,122.98 and 2,841.98

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Solution

The fourth proportional to 9,415.76, 14,122.98 and 2,841.98 is: 4,262.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,415.76 : 14,122.98 = 2,841.98 : x
  2. Step 2: Convert to fraction form
    9,415.76/14,122.98 = 2,841.98/x
  3. Step 3: Cross multiply
    9,415.76x = 14,122.98 × 2,841.98
  4. Step 4: Simplify right side
    9,415.76x = 40,137,156.09
  5. Step 5: Solve for x
    x = 40,137,156.09/9,415.76
  6. Step 6: Final answer
    x = 4,262.77

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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.