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Finding the Fourth Proportional to 58,243.98, 87,343.80 and 20,797.08

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Solution

The fourth proportional to 58,243.98, 87,343.80 and 20,797.08 is: 31,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,243.98 : 87,343.80 = 20,797.08 : x
  2. Step 2: Convert to fraction form
    58,243.98/87,343.80 = 20,797.08/x
  3. Step 3: Cross multiply
    58,243.98x = 87,343.80 × 20,797.08
  4. Step 4: Simplify right side
    58,243.98x = 1,816,495,996.10
  5. Step 5: Solve for x
    x = 1,816,495,996.10/58,243.98
  6. Step 6: Final answer
    x = 31,187.70

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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.