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Finding the Fourth Proportional to 19,351.60, 29,005.80 and 11,035.60

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Solution

The fourth proportional to 19,351.60, 29,005.80 and 11,035.60 is: 16,541.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,351.60 : 29,005.80 = 11,035.60 : x
  2. Step 2: Convert to fraction form
    19,351.60/29,005.80 = 11,035.60/x
  3. Step 3: Cross multiply
    19,351.60x = 29,005.80 × 11,035.60
  4. Step 4: Simplify right side
    19,351.60x = 320,096,406.48
  5. Step 5: Solve for x
    x = 320,096,406.48/19,351.60
  6. Step 6: Final answer
    x = 16,541.08

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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.