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Finding the Fourth Proportional to 9,301.80, 13,968.90 and 4,927.80

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Solution

The fourth proportional to 9,301.80, 13,968.90 and 4,927.80 is: 7,400.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,301.80 : 13,968.90 = 4,927.80 : x
  2. Step 2: Convert to fraction form
    9,301.80/13,968.90 = 4,927.80/x
  3. Step 3: Cross multiply
    9,301.80x = 13,968.90 × 4,927.80
  4. Step 4: Simplify right side
    9,301.80x = 68,835,945.42
  5. Step 5: Solve for x
    x = 68,835,945.42/9,301.80
  6. Step 6: Final answer
    x = 7,400.28

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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.