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Finding the Fourth Proportional to 65,457.48, 98,128.98 and 23,331

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Solution

The fourth proportional to 65,457.48, 98,128.98 and 23,331 is: 34,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,457.48 : 98,128.98 = 23,331 : x
  2. Step 2: Convert to fraction form
    65,457.48/98,128.98 = 23,331/x
  3. Step 3: Cross multiply
    65,457.48x = 98,128.98 × 23,331
  4. Step 4: Simplify right side
    65,457.48x = 2,289,447,232.38
  5. Step 5: Solve for x
    x = 2,289,447,232.38/65,457.48
  6. Step 6: Final answer
    x = 34,976.10

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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.