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Finding the Fourth Proportional to 11,300.10, 16,950.15 and 3,509.70

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Solution

The fourth proportional to 11,300.10, 16,950.15 and 3,509.70 is: 5,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,300.10 : 16,950.15 = 3,509.70 : x
  2. Step 2: Convert to fraction form
    11,300.10/16,950.15 = 3,509.70/x
  3. Step 3: Cross multiply
    11,300.10x = 16,950.15 × 3,509.70
  4. Step 4: Simplify right side
    11,300.10x = 59,489,941.46
  5. Step 5: Solve for x
    x = 59,489,941.46/11,300.10
  6. Step 6: Final answer
    x = 5,264.55

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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.