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Finding the Fourth Proportional to 8,833.64, 12,190.40 and 4,855

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Solution

The fourth proportional to 8,833.64, 12,190.40 and 4,855 is: 6,699.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,833.64 : 12,190.40 = 4,855 : x
  2. Step 2: Convert to fraction form
    8,833.64/12,190.40 = 4,855/x
  3. Step 3: Cross multiply
    8,833.64x = 12,190.40 × 4,855
  4. Step 4: Simplify right side
    8,833.64x = 59,184,392
  5. Step 5: Solve for x
    x = 59,184,392/8,833.64
  6. Step 6: Final answer
    x = 6,699.89

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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.