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Finding the Fourth Proportional to 5,855.58, 8,783.10 and 4,215.06

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Solution

The fourth proportional to 5,855.58, 8,783.10 and 4,215.06 is: 6,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.58 : 8,783.10 = 4,215.06 : x
  2. Step 2: Convert to fraction form
    5,855.58/8,783.10 = 4,215.06/x
  3. Step 3: Cross multiply
    5,855.58x = 8,783.10 × 4,215.06
  4. Step 4: Simplify right side
    5,855.58x = 37,021,293.49
  5. Step 5: Solve for x
    x = 37,021,293.49/5,855.58
  6. Step 6: Final answer
    x = 6,322.40

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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.