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Finding the Fourth Proportional to 3,929.93, 5,894.65 and 1,156.77

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Solution

The fourth proportional to 3,929.93, 5,894.65 and 1,156.77 is: 1,735.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.93 : 5,894.65 = 1,156.77 : x
  2. Step 2: Convert to fraction form
    3,929.93/5,894.65 = 1,156.77/x
  3. Step 3: Cross multiply
    3,929.93x = 5,894.65 × 1,156.77
  4. Step 4: Simplify right side
    3,929.93x = 6,818,754.28
  5. Step 5: Solve for x
    x = 6,818,754.28/3,929.93
  6. Step 6: Final answer
    x = 1,735.08

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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.