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Finding the Fourth Proportional to 21,069.91, 31,594.21 and 7,025.02

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Solution

The fourth proportional to 21,069.91, 31,594.21 and 7,025.02 is: 10,533.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069.91 : 31,594.21 = 7,025.02 : x
  2. Step 2: Convert to fraction form
    21,069.91/31,594.21 = 7,025.02/x
  3. Step 3: Cross multiply
    21,069.91x = 31,594.21 × 7,025.02
  4. Step 4: Simplify right side
    21,069.91x = 221,949,957.13
  5. Step 5: Solve for x
    x = 221,949,957.13/21,069.91
  6. Step 6: Final answer
    x = 10,533.98

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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.