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Finding the Fourth Proportional to 5,858.12, 8,787.63 and 1,698.19

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Solution

The fourth proportional to 5,858.12, 8,787.63 and 1,698.19 is: 2,547.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,858.12 : 8,787.63 = 1,698.19 : x
  2. Step 2: Convert to fraction form
    5,858.12/8,787.63 = 1,698.19/x
  3. Step 3: Cross multiply
    5,858.12x = 8,787.63 × 1,698.19
  4. Step 4: Simplify right side
    5,858.12x = 14,923,065.39
  5. Step 5: Solve for x
    x = 14,923,065.39/5,858.12
  6. Step 6: Final answer
    x = 2,547.42

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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.