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Finding the Fourth Proportional to 4,789.04, 7,182.44 and 1,866.16

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Solution

The fourth proportional to 4,789.04, 7,182.44 and 1,866.16 is: 2,798.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.04 : 7,182.44 = 1,866.16 : x
  2. Step 2: Convert to fraction form
    4,789.04/7,182.44 = 1,866.16/x
  3. Step 3: Cross multiply
    4,789.04x = 7,182.44 × 1,866.16
  4. Step 4: Simplify right side
    4,789.04x = 13,403,582.23
  5. Step 5: Solve for x
    x = 13,403,582.23/4,789.04
  6. Step 6: Final answer
    x = 2,798.80

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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.