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Finding the Fourth Proportional to 56,023, 84,048.90 and 19,087

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Solution

The fourth proportional to 56,023, 84,048.90 and 19,087 is: 28,635.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,023 : 84,048.90 = 19,087 : x
  2. Step 2: Convert to fraction form
    56,023/84,048.90 = 19,087/x
  3. Step 3: Cross multiply
    56,023x = 84,048.90 × 19,087
  4. Step 4: Simplify right side
    56,023x = 1,604,241,354.30
  5. Step 5: Solve for x
    x = 1,604,241,354.30/56,023
  6. Step 6: Final answer
    x = 28,635.41

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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.