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Finding the Fourth Proportional to 7,751.58, 11,615.92 and 4,585.74

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Solution

The fourth proportional to 7,751.58, 11,615.92 and 4,585.74 is: 6,871.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.58 : 11,615.92 = 4,585.74 : x
  2. Step 2: Convert to fraction form
    7,751.58/11,615.92 = 4,585.74/x
  3. Step 3: Cross multiply
    7,751.58x = 11,615.92 × 4,585.74
  4. Step 4: Simplify right side
    7,751.58x = 53,267,588.98
  5. Step 5: Solve for x
    x = 53,267,588.98/7,751.58
  6. Step 6: Final answer
    x = 6,871.84

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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.