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Finding the Fourth Proportional to 4,784.55, 7,173.89 and 1,859.45

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Solution

The fourth proportional to 4,784.55, 7,173.89 and 1,859.45 is: 2,788.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,784.55 : 7,173.89 = 1,859.45 : x
  2. Step 2: Convert to fraction form
    4,784.55/7,173.89 = 1,859.45/x
  3. Step 3: Cross multiply
    4,784.55x = 7,173.89 × 1,859.45
  4. Step 4: Simplify right side
    4,784.55x = 13,339,444.59
  5. Step 5: Solve for x
    x = 13,339,444.59/4,784.55
  6. Step 6: Final answer
    x = 2,788.02

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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.