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Finding the Fourth Proportional to 79,892.51, 119,838.78 and 27,302.45

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Solution

The fourth proportional to 79,892.51, 119,838.78 and 27,302.45 is: 40,953.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,892.51 : 119,838.78 = 27,302.45 : x
  2. Step 2: Convert to fraction form
    79,892.51/119,838.78 = 27,302.45/x
  3. Step 3: Cross multiply
    79,892.51x = 119,838.78 × 27,302.45
  4. Step 4: Simplify right side
    79,892.51x = 3,271,891,699.82
  5. Step 5: Solve for x
    x = 3,271,891,699.82/79,892.51
  6. Step 6: Final answer
    x = 40,953.68

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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.