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Finding the Fourth Proportional to 4,746.75, 7,120.14 and 1,668.75

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Solution

The fourth proportional to 4,746.75, 7,120.14 and 1,668.75 is: 2,503.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,746.75 : 7,120.14 = 1,668.75 : x
  2. Step 2: Convert to fraction form
    4,746.75/7,120.14 = 1,668.75/x
  3. Step 3: Cross multiply
    4,746.75x = 7,120.14 × 1,668.75
  4. Step 4: Simplify right side
    4,746.75x = 11,881,733.63
  5. Step 5: Solve for x
    x = 11,881,733.63/4,746.75
  6. Step 6: Final answer
    x = 2,503.13

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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.