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Finding the Fourth Proportional to 19,356.60, 29,038.14 and 6,207.60

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Solution

The fourth proportional to 19,356.60, 29,038.14 and 6,207.60 is: 9,312.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,356.60 : 29,038.14 = 6,207.60 : x
  2. Step 2: Convert to fraction form
    19,356.60/29,038.14 = 6,207.60/x
  3. Step 3: Cross multiply
    19,356.60x = 29,038.14 × 6,207.60
  4. Step 4: Simplify right side
    19,356.60x = 180,257,157.86
  5. Step 5: Solve for x
    x = 180,257,157.86/19,356.60
  6. Step 6: Final answer
    x = 9,312.44

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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.