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Finding the Fourth Proportional to 58,756.62, 81,085.14 and 31,899.15

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Solution

The fourth proportional to 58,756.62, 81,085.14 and 31,899.15 is: 44,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,756.62 : 81,085.14 = 31,899.15 : x
  2. Step 2: Convert to fraction form
    58,756.62/81,085.14 = 31,899.15/x
  3. Step 3: Cross multiply
    58,756.62x = 81,085.14 × 31,899.15
  4. Step 4: Simplify right side
    58,756.62x = 2,586,547,043.63
  5. Step 5: Solve for x
    x = 2,586,547,043.63/58,756.62
  6. Step 6: Final answer
    x = 44,021.37

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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.