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Finding the Fourth Proportional to 5,827.79, 8,053.76 and 5,179.79

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Solution

The fourth proportional to 5,827.79, 8,053.76 and 5,179.79 is: 7,158.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,827.79 : 8,053.76 = 5,179.79 : x
  2. Step 2: Convert to fraction form
    5,827.79/8,053.76 = 5,179.79/x
  3. Step 3: Cross multiply
    5,827.79x = 8,053.76 × 5,179.79
  4. Step 4: Simplify right side
    5,827.79x = 41,716,785.51
  5. Step 5: Solve for x
    x = 41,716,785.51/5,827.79
  6. Step 6: Final answer
    x = 7,158.25

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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.