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Finding the Fourth Proportional to 56,607.80, 84,911.70 and 23,316.80

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Solution

The fourth proportional to 56,607.80, 84,911.70 and 23,316.80 is: 34,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,607.80 : 84,911.70 = 23,316.80 : x
  2. Step 2: Convert to fraction form
    56,607.80/84,911.70 = 23,316.80/x
  3. Step 3: Cross multiply
    56,607.80x = 84,911.70 × 23,316.80
  4. Step 4: Simplify right side
    56,607.80x = 1,979,869,126.56
  5. Step 5: Solve for x
    x = 1,979,869,126.56/56,607.80
  6. Step 6: Final answer
    x = 34,975.20

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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.