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Finding the Fourth Proportional to 58,343.76, 80,514.36 and 34,479

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Solution

The fourth proportional to 58,343.76, 80,514.36 and 34,479 is: 47,581.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,343.76 : 80,514.36 = 34,479 : x
  2. Step 2: Convert to fraction form
    58,343.76/80,514.36 = 34,479/x
  3. Step 3: Cross multiply
    58,343.76x = 80,514.36 × 34,479
  4. Step 4: Simplify right side
    58,343.76x = 2,776,054,618.44
  5. Step 5: Solve for x
    x = 2,776,054,618.44/58,343.76
  6. Step 6: Final answer
    x = 47,581.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.