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Finding the Fourth Proportional to 58,756.49, 81,084.53 and 31,899.21

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Solution

The fourth proportional to 58,756.49, 81,084.53 and 31,899.21 is: 44,021.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,756.49 : 81,084.53 = 31,899.21 : x
  2. Step 2: Convert to fraction form
    58,756.49/81,084.53 = 31,899.21/x
  3. Step 3: Cross multiply
    58,756.49x = 81,084.53 × 31,899.21
  4. Step 4: Simplify right side
    58,756.49x = 2,586,532,450.22
  5. Step 5: Solve for x
    x = 2,586,532,450.22/58,756.49
  6. Step 6: Final answer
    x = 44,021.22

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1.5x scale

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.