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Finding the Fourth Proportional to 4,973.39, 6,866.65 and 3,085.74

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Solution

The fourth proportional to 4,973.39, 6,866.65 and 3,085.74 is: 4,260.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,973.39 : 6,866.65 = 3,085.74 : x
  2. Step 2: Convert to fraction form
    4,973.39/6,866.65 = 3,085.74/x
  3. Step 3: Cross multiply
    4,973.39x = 6,866.65 × 3,085.74
  4. Step 4: Simplify right side
    4,973.39x = 21,188,688.86
  5. Step 5: Solve for x
    x = 21,188,688.86/4,973.39
  6. Step 6: Final answer
    x = 4,260.41

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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.