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Finding the Fourth Proportional to 65,873.88, 98,813.56 and 19,126.76

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Solution

The fourth proportional to 65,873.88, 98,813.56 and 19,126.76 is: 28,690.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,873.88 : 98,813.56 = 19,126.76 : x
  2. Step 2: Convert to fraction form
    65,873.88/98,813.56 = 19,126.76/x
  3. Step 3: Cross multiply
    65,873.88x = 98,813.56 × 19,126.76
  4. Step 4: Simplify right side
    65,873.88x = 1,889,982,991.86
  5. Step 5: Solve for x
    x = 1,889,982,991.86/65,873.88
  6. Step 6: Final answer
    x = 28,690.93

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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.