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Finding the Fourth Proportional to 17,280.90, 25,901.01 and 9,890.46

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Solution

The fourth proportional to 17,280.90, 25,901.01 and 9,890.46 is: 14,824.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,280.90 : 25,901.01 = 9,890.46 : x
  2. Step 2: Convert to fraction form
    17,280.90/25,901.01 = 9,890.46/x
  3. Step 3: Cross multiply
    17,280.90x = 25,901.01 × 9,890.46
  4. Step 4: Simplify right side
    17,280.90x = 256,172,903.36
  5. Step 5: Solve for x
    x = 256,172,903.36/17,280.90
  6. Step 6: Final answer
    x = 14,824.05

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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.