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Finding the Fourth Proportional to 19,373.60, 29,038.80 and 11,057.60

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Solution

The fourth proportional to 19,373.60, 29,038.80 and 11,057.60 is: 16,574.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,373.60 : 29,038.80 = 11,057.60 : x
  2. Step 2: Convert to fraction form
    19,373.60/29,038.80 = 11,057.60/x
  3. Step 3: Cross multiply
    19,373.60x = 29,038.80 × 11,057.60
  4. Step 4: Simplify right side
    19,373.60x = 321,099,434.88
  5. Step 5: Solve for x
    x = 321,099,434.88/19,373.60
  6. Step 6: Final answer
    x = 16,574.07

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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.