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Finding the Fourth Proportional to 65,443.48, 98,152.80 and 18,046.86

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Solution

The fourth proportional to 65,443.48, 98,152.80 and 18,046.86 is: 27,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,443.48 : 98,152.80 = 18,046.86 : x
  2. Step 2: Convert to fraction form
    65,443.48/98,152.80 = 18,046.86/x
  3. Step 3: Cross multiply
    65,443.48x = 98,152.80 × 18,046.86
  4. Step 4: Simplify right side
    65,443.48x = 1,771,349,840.21
  5. Step 5: Solve for x
    x = 1,771,349,840.21/65,443.48
  6. Step 6: Final answer
    x = 27,066.87

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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.