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Finding the Fourth Proportional to 8,720.84, 12,035.01 and 4,944.02

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Solution

The fourth proportional to 8,720.84, 12,035.01 and 4,944.02 is: 6,822.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.84 : 12,035.01 = 4,944.02 : x
  2. Step 2: Convert to fraction form
    8,720.84/12,035.01 = 4,944.02/x
  3. Step 3: Cross multiply
    8,720.84x = 12,035.01 × 4,944.02
  4. Step 4: Simplify right side
    8,720.84x = 59,501,269.97
  5. Step 5: Solve for x
    x = 59,501,269.97/8,720.84
  6. Step 6: Final answer
    x = 6,822.89

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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.