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Finding the Fourth Proportional to 22,435.40, 33,653.10 and 7,643.99

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Solution

The fourth proportional to 22,435.40, 33,653.10 and 7,643.99 is: 11,465.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,435.40 : 33,653.10 = 7,643.99 : x
  2. Step 2: Convert to fraction form
    22,435.40/33,653.10 = 7,643.99/x
  3. Step 3: Cross multiply
    22,435.40x = 33,653.10 × 7,643.99
  4. Step 4: Simplify right side
    22,435.40x = 257,243,791.60
  5. Step 5: Solve for x
    x = 257,243,791.60/22,435.40
  6. Step 6: Final answer
    x = 11,465.98

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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.