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Finding the Fourth Proportional to 5,905.99, 8,864.39 and 3,718.63

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Solution

The fourth proportional to 5,905.99, 8,864.39 and 3,718.63 is: 5,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.99 : 8,864.39 = 3,718.63 : x
  2. Step 2: Convert to fraction form
    5,905.99/8,864.39 = 3,718.63/x
  3. Step 3: Cross multiply
    5,905.99x = 8,864.39 × 3,718.63
  4. Step 4: Simplify right side
    5,905.99x = 32,963,386.59
  5. Step 5: Solve for x
    x = 32,963,386.59/5,905.99
  6. Step 6: Final answer
    x = 5,581.35

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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.