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Finding the Fourth Proportional to 34,405.60, 47,481.60 and 19,303.12

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Solution

The fourth proportional to 34,405.60, 47,481.60 and 19,303.12 is: 26,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,405.60 : 47,481.60 = 19,303.12 : x
  2. Step 2: Convert to fraction form
    34,405.60/47,481.60 = 19,303.12/x
  3. Step 3: Cross multiply
    34,405.60x = 47,481.60 × 19,303.12
  4. Step 4: Simplify right side
    34,405.60x = 916,543,022.59
  5. Step 5: Solve for x
    x = 916,543,022.59/34,405.60
  6. Step 6: Final answer
    x = 26,639.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.