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Finding the Fourth Proportional to 8,698.95, 13,043.52 and 2,855.07

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Solution

The fourth proportional to 8,698.95, 13,043.52 and 2,855.07 is: 4,281.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.95 : 13,043.52 = 2,855.07 : x
  2. Step 2: Convert to fraction form
    8,698.95/13,043.52 = 2,855.07/x
  3. Step 3: Cross multiply
    8,698.95x = 13,043.52 × 2,855.07
  4. Step 4: Simplify right side
    8,698.95x = 37,240,162.65
  5. Step 5: Solve for x
    x = 37,240,162.65/8,698.95
  6. Step 6: Final answer
    x = 4,281.00

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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.