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Finding the Fourth Proportional to 19,362.60, 29,043.30 and 5,511.60

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Solution

The fourth proportional to 19,362.60, 29,043.30 and 5,511.60 is: 8,267.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,362.60 : 29,043.30 = 5,511.60 : x
  2. Step 2: Convert to fraction form
    19,362.60/29,043.30 = 5,511.60/x
  3. Step 3: Cross multiply
    19,362.60x = 29,043.30 × 5,511.60
  4. Step 4: Simplify right side
    19,362.60x = 160,075,052.28
  5. Step 5: Solve for x
    x = 160,075,052.28/19,362.60
  6. Step 6: Final answer
    x = 8,267.23

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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.