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Finding the Fourth Proportional to 7,751.99, 10,701.42 and 4,959.11

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Solution

The fourth proportional to 7,751.99, 10,701.42 and 4,959.11 is: 6,845.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.99 : 10,701.42 = 4,959.11 : x
  2. Step 2: Convert to fraction form
    7,751.99/10,701.42 = 4,959.11/x
  3. Step 3: Cross multiply
    7,751.99x = 10,701.42 × 4,959.11
  4. Step 4: Simplify right side
    7,751.99x = 53,069,518.94
  5. Step 5: Solve for x
    x = 53,069,518.94/7,751.99
  6. Step 6: Final answer
    x = 6,845.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.