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Finding the Fourth Proportional to 9,492.90, 14,240.70 and 2,919.63

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Solution

The fourth proportional to 9,492.90, 14,240.70 and 2,919.63 is: 4,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,492.90 : 14,240.70 = 2,919.63 : x
  2. Step 2: Convert to fraction form
    9,492.90/14,240.70 = 2,919.63/x
  3. Step 3: Cross multiply
    9,492.90x = 14,240.70 × 2,919.63
  4. Step 4: Simplify right side
    9,492.90x = 41,577,574.94
  5. Step 5: Solve for x
    x = 41,577,574.94/9,492.90
  6. Step 6: Final answer
    x = 4,379.86

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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.