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Finding the Fourth Proportional to 64,809.88, 97,214.82 and 15,561.88

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Solution

The fourth proportional to 64,809.88, 97,214.82 and 15,561.88 is: 23,342.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,809.88 : 97,214.82 = 15,561.88 : x
  2. Step 2: Convert to fraction form
    64,809.88/97,214.82 = 15,561.88/x
  3. Step 3: Cross multiply
    64,809.88x = 97,214.82 × 15,561.88
  4. Step 4: Simplify right side
    64,809.88x = 1,512,845,363.06
  5. Step 5: Solve for x
    x = 1,512,845,363.06/64,809.88
  6. Step 6: Final answer
    x = 23,342.82

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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.