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Finding the Fourth Proportional to 58,678.00, 80,975.68 and 31,820.50

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Solution

The fourth proportional to 58,678.00, 80,975.68 and 31,820.50 is: 43,912.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,678.00 : 80,975.68 = 31,820.50 : x
  2. Step 2: Convert to fraction form
    58,678.00/80,975.68 = 31,820.50/x
  3. Step 3: Cross multiply
    58,678.00x = 80,975.68 × 31,820.50
  4. Step 4: Simplify right side
    58,678.00x = 2,576,686,343.45
  5. Step 5: Solve for x
    x = 2,576,686,343.45/58,678.00
  6. Step 6: Final answer
    x = 43,912.31

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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.