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Finding the Fourth Proportional to 8,005.95, 12,010.14 and 4,720.59

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Solution

The fourth proportional to 8,005.95, 12,010.14 and 4,720.59 is: 7,081.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.95 : 12,010.14 = 4,720.59 : x
  2. Step 2: Convert to fraction form
    8,005.95/12,010.14 = 4,720.59/x
  3. Step 3: Cross multiply
    8,005.95x = 12,010.14 × 4,720.59
  4. Step 4: Simplify right side
    8,005.95x = 56,694,946.78
  5. Step 5: Solve for x
    x = 56,694,946.78/8,005.95
  6. Step 6: Final answer
    x = 7,081.60

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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.