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Finding the Fourth Proportional to 52,555.30, 78,832.95 and 15,619.30

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Solution

The fourth proportional to 52,555.30, 78,832.95 and 15,619.30 is: 23,428.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,555.30 : 78,832.95 = 15,619.30 : x
  2. Step 2: Convert to fraction form
    52,555.30/78,832.95 = 15,619.30/x
  3. Step 3: Cross multiply
    52,555.30x = 78,832.95 × 15,619.30
  4. Step 4: Simplify right side
    52,555.30x = 1,231,315,495.94
  5. Step 5: Solve for x
    x = 1,231,315,495.94/52,555.30
  6. Step 6: Final answer
    x = 23,428.95

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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.