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Finding the Fourth Proportional to 58,511.56, 87,774.24 and 20,549.20

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Solution

The fourth proportional to 58,511.56, 87,774.24 and 20,549.20 is: 30,826.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,511.56 : 87,774.24 = 20,549.20 : x
  2. Step 2: Convert to fraction form
    58,511.56/87,774.24 = 20,549.20/x
  3. Step 3: Cross multiply
    58,511.56x = 87,774.24 × 20,549.20
  4. Step 4: Simplify right side
    58,511.56x = 1,803,690,412.61
  5. Step 5: Solve for x
    x = 1,803,690,412.61/58,511.56
  6. Step 6: Final answer
    x = 30,826.22

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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.