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Finding the Fourth Proportional to 60,293.05, 90,452.53 and 20,316

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Solution

The fourth proportional to 60,293.05, 90,452.53 and 20,316 is: 30,478.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,293.05 : 90,452.53 = 20,316 : x
  2. Step 2: Convert to fraction form
    60,293.05/90,452.53 = 20,316/x
  3. Step 3: Cross multiply
    60,293.05x = 90,452.53 × 20,316
  4. Step 4: Simplify right side
    60,293.05x = 1,837,633,599.48
  5. Step 5: Solve for x
    x = 1,837,633,599.48/60,293.05
  6. Step 6: Final answer
    x = 30,478.37

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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.