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Finding the Fourth Proportional to 6,347.88, 8,756.55 and 4,458.69

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Solution

The fourth proportional to 6,347.88, 8,756.55 and 4,458.69 is: 6,150.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347.88 : 8,756.55 = 4,458.69 : x
  2. Step 2: Convert to fraction form
    6,347.88/8,756.55 = 4,458.69/x
  3. Step 3: Cross multiply
    6,347.88x = 8,756.55 × 4,458.69
  4. Step 4: Simplify right side
    6,347.88x = 39,042,741.92
  5. Step 5: Solve for x
    x = 39,042,741.92/6,347.88
  6. Step 6: Final answer
    x = 6,150.52

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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.