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Finding the Fourth Proportional to 7,050.85, 9,729.59 and 4,065.59

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Solution

The fourth proportional to 7,050.85, 9,729.59 and 4,065.59 is: 5,610.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,050.85 : 9,729.59 = 4,065.59 : x
  2. Step 2: Convert to fraction form
    7,050.85/9,729.59 = 4,065.59/x
  3. Step 3: Cross multiply
    7,050.85x = 9,729.59 × 4,065.59
  4. Step 4: Simplify right side
    7,050.85x = 39,556,527.80
  5. Step 5: Solve for x
    x = 39,556,527.80/7,050.85
  6. Step 6: Final answer
    x = 5,610.18

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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.