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Finding the Fourth Proportional to 19,090.62, 28,629.06 and 6,607.25

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Solution

The fourth proportional to 19,090.62, 28,629.06 and 6,607.25 is: 9,908.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.62 : 28,629.06 = 6,607.25 : x
  2. Step 2: Convert to fraction form
    19,090.62/28,629.06 = 6,607.25/x
  3. Step 3: Cross multiply
    19,090.62x = 28,629.06 × 6,607.25
  4. Step 4: Simplify right side
    19,090.62x = 189,159,428.26
  5. Step 5: Solve for x
    x = 189,159,428.26/19,090.62
  6. Step 6: Final answer
    x = 9,908.50

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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.