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Finding the Fourth Proportional to 65,798.08, 98,673.81 and 21,416.56

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Solution

The fourth proportional to 65,798.08, 98,673.81 and 21,416.56 is: 32,117.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,798.08 : 98,673.81 = 21,416.56 : x
  2. Step 2: Convert to fraction form
    65,798.08/98,673.81 = 21,416.56/x
  3. Step 3: Cross multiply
    65,798.08x = 98,673.81 × 21,416.56
  4. Step 4: Simplify right side
    65,798.08x = 2,113,253,572.29
  5. Step 5: Solve for x
    x = 2,113,253,572.29/65,798.08
  6. Step 6: Final answer
    x = 32,117.25

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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.