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Finding the Fourth Proportional to 64,809.50, 97,214.26 and 15,561.50

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Solution

The fourth proportional to 64,809.50, 97,214.26 and 15,561.50 is: 23,342.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,809.50 : 97,214.26 = 15,561.50 : x
  2. Step 2: Convert to fraction form
    64,809.50/97,214.26 = 15,561.50/x
  3. Step 3: Cross multiply
    64,809.50x = 97,214.26 × 15,561.50
  4. Step 4: Simplify right side
    64,809.50x = 1,512,799,706.99
  5. Step 5: Solve for x
    x = 1,512,799,706.99/64,809.50
  6. Step 6: Final answer
    x = 23,342.25

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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.