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Finding the Fourth Proportional to 5,735.93, 7,904.76 and 4,139.76

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Solution

The fourth proportional to 5,735.93, 7,904.76 and 4,139.76 is: 5,705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,735.93 : 7,904.76 = 4,139.76 : x
  2. Step 2: Convert to fraction form
    5,735.93/7,904.76 = 4,139.76/x
  3. Step 3: Cross multiply
    5,735.93x = 7,904.76 × 4,139.76
  4. Step 4: Simplify right side
    5,735.93x = 32,723,809.26
  5. Step 5: Solve for x
    x = 32,723,809.26/5,735.93
  6. Step 6: Final answer
    x = 5,705.05

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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.