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Finding the Fourth Proportional to 3,929.95, 5,894.93 and 1,008.28

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Solution

The fourth proportional to 3,929.95, 5,894.93 and 1,008.28 is: 1,512.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.95 : 5,894.93 = 1,008.28 : x
  2. Step 2: Convert to fraction form
    3,929.95/5,894.93 = 1,008.28/x
  3. Step 3: Cross multiply
    3,929.95x = 5,894.93 × 1,008.28
  4. Step 4: Simplify right side
    3,929.95x = 5,943,740.02
  5. Step 5: Solve for x
    x = 5,943,740.02/3,929.95
  6. Step 6: Final answer
    x = 1,512.42

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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.