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Finding the Fourth Proportional to 64,829, 97,259.93 and 18,081.88

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Solution

The fourth proportional to 64,829, 97,259.93 and 18,081.88 is: 27,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,829 : 97,259.93 = 18,081.88 : x
  2. Step 2: Convert to fraction form
    64,829/97,259.93 = 18,081.88/x
  3. Step 3: Cross multiply
    64,829x = 97,259.93 × 18,081.88
  4. Step 4: Simplify right side
    64,829x = 1,758,642,383.07
  5. Step 5: Solve for x
    x = 1,758,642,383.07/64,829
  6. Step 6: Final answer
    x = 27,127.40

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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.