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Finding the Fourth Proportional to 19,610.40, 29,415.60 and 16,154.40

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Solution

The fourth proportional to 19,610.40, 29,415.60 and 16,154.40 is: 24,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,610.40 : 29,415.60 = 16,154.40 : x
  2. Step 2: Convert to fraction form
    19,610.40/29,415.60 = 16,154.40/x
  3. Step 3: Cross multiply
    19,610.40x = 29,415.60 × 16,154.40
  4. Step 4: Simplify right side
    19,610.40x = 475,191,368.64
  5. Step 5: Solve for x
    x = 475,191,368.64/19,610.40
  6. Step 6: Final answer
    x = 24,231.60

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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.