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Finding the Fourth Proportional to 19,792.88, 29,698.08 and 10,430.60

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Solution

The fourth proportional to 19,792.88, 29,698.08 and 10,430.60 is: 15,650.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.88 : 29,698.08 = 10,430.60 : x
  2. Step 2: Convert to fraction form
    19,792.88/29,698.08 = 10,430.60/x
  3. Step 3: Cross multiply
    19,792.88x = 29,698.08 × 10,430.60
  4. Step 4: Simplify right side
    19,792.88x = 309,768,793.25
  5. Step 5: Solve for x
    x = 309,768,793.25/19,792.88
  6. Step 6: Final answer
    x = 15,650.52

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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.