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Finding the Fourth Proportional to 19,574.58, 29,361.78 and 4,783.58

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Solution

The fourth proportional to 19,574.58, 29,361.78 and 4,783.58 is: 7,175.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,574.58 : 29,361.78 = 4,783.58 : x
  2. Step 2: Convert to fraction form
    19,574.58/29,361.78 = 4,783.58/x
  3. Step 3: Cross multiply
    19,574.58x = 29,361.78 × 4,783.58
  4. Step 4: Simplify right side
    19,574.58x = 140,454,423.57
  5. Step 5: Solve for x
    x = 140,454,423.57/19,574.58
  6. Step 6: Final answer
    x = 7,175.35

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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.