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Finding the Fourth Proportional to 4,668.03, 6,444.90 and 2,990.07

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Solution

The fourth proportional to 4,668.03, 6,444.90 and 2,990.07 is: 4,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,668.03 : 6,444.90 = 2,990.07 : x
  2. Step 2: Convert to fraction form
    4,668.03/6,444.90 = 2,990.07/x
  3. Step 3: Cross multiply
    4,668.03x = 6,444.90 × 2,990.07
  4. Step 4: Simplify right side
    4,668.03x = 19,270,702.14
  5. Step 5: Solve for x
    x = 19,270,702.14/4,668.03
  6. Step 6: Final answer
    x = 4,128.23

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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.