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Finding the Fourth Proportional to 3,507.47, 4,839.10 and 1,994.88

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Solution

The fourth proportional to 3,507.47, 4,839.10 and 1,994.88 is: 2,752.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.47 : 4,839.10 = 1,994.88 : x
  2. Step 2: Convert to fraction form
    3,507.47/4,839.10 = 1,994.88/x
  3. Step 3: Cross multiply
    3,507.47x = 4,839.10 × 1,994.88
  4. Step 4: Simplify right side
    3,507.47x = 9,653,423.81
  5. Step 5: Solve for x
    x = 9,653,423.81/3,507.47
  6. Step 6: Final answer
    x = 2,752.25

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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.