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Finding the Fourth Proportional to 6,803.90, 9,389.62 and 3,973.08

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Solution

The fourth proportional to 6,803.90, 9,389.62 and 3,973.08 is: 5,483.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,803.90 : 9,389.62 = 3,973.08 : x
  2. Step 2: Convert to fraction form
    6,803.90/9,389.62 = 3,973.08/x
  3. Step 3: Cross multiply
    6,803.90x = 9,389.62 × 3,973.08
  4. Step 4: Simplify right side
    6,803.90x = 37,305,751.61
  5. Step 5: Solve for x
    x = 37,305,751.61/6,803.90
  6. Step 6: Final answer
    x = 5,483.00

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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.