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Finding the Fourth Proportional to 7,587.68, 11,388.63 and 4,671.68

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Solution

The fourth proportional to 7,587.68, 11,388.63 and 4,671.68 is: 7,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,587.68 : 11,388.63 = 4,671.68 : x
  2. Step 2: Convert to fraction form
    7,587.68/11,388.63 = 4,671.68/x
  3. Step 3: Cross multiply
    7,587.68x = 11,388.63 × 4,671.68
  4. Step 4: Simplify right side
    7,587.68x = 53,204,035.00
  5. Step 5: Solve for x
    x = 53,204,035.00/7,587.68
  6. Step 6: Final answer
    x = 7,011.90

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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.