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Finding the Fourth Proportional to 9,973.44, 13,757.04 and 7,135.20

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Solution

The fourth proportional to 9,973.44, 13,757.04 and 7,135.20 is: 9,842.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,973.44 : 13,757.04 = 7,135.20 : x
  2. Step 2: Convert to fraction form
    9,973.44/13,757.04 = 7,135.20/x
  3. Step 3: Cross multiply
    9,973.44x = 13,757.04 × 7,135.20
  4. Step 4: Simplify right side
    9,973.44x = 98,159,231.81
  5. Step 5: Solve for x
    x = 98,159,231.81/9,973.44
  6. Step 6: Final answer
    x = 9,842.06

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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.