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Finding the Fourth Proportional to 7,059.75, 10,590.26 and 1,865.63

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Solution

The fourth proportional to 7,059.75, 10,590.26 and 1,865.63 is: 2,798.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,059.75 : 10,590.26 = 1,865.63 : x
  2. Step 2: Convert to fraction form
    7,059.75/10,590.26 = 1,865.63/x
  3. Step 3: Cross multiply
    7,059.75x = 10,590.26 × 1,865.63
  4. Step 4: Simplify right side
    7,059.75x = 19,757,506.76
  5. Step 5: Solve for x
    x = 19,757,506.76/7,059.75
  6. Step 6: Final answer
    x = 2,798.61

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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.