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Finding the Fourth Proportional to 64,988.31, 97,488.89 and 27,029.79

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Solution

The fourth proportional to 64,988.31, 97,488.89 and 27,029.79 is: 40,547.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,988.31 : 97,488.89 = 27,029.79 : x
  2. Step 2: Convert to fraction form
    64,988.31/97,488.89 = 27,029.79/x
  3. Step 3: Cross multiply
    64,988.31x = 97,488.89 × 27,029.79
  4. Step 4: Simplify right side
    64,988.31x = 2,635,104,088.88
  5. Step 5: Solve for x
    x = 2,635,104,088.88/64,988.31
  6. Step 6: Final answer
    x = 40,547.36

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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.