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Finding the Fourth Proportional to 19,295.52, 26,628.60 and 10,912

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Solution

The fourth proportional to 19,295.52, 26,628.60 and 10,912 is: 15,059.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,295.52 : 26,628.60 = 10,912 : x
  2. Step 2: Convert to fraction form
    19,295.52/26,628.60 = 10,912/x
  3. Step 3: Cross multiply
    19,295.52x = 26,628.60 × 10,912
  4. Step 4: Simplify right side
    19,295.52x = 290,571,283.20
  5. Step 5: Solve for x
    x = 290,571,283.20/19,295.52
  6. Step 6: Final answer
    x = 15,059.00

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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.