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Finding the Fourth Proportional to 16,294, 22,485.74 and 9,220.28

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Solution

The fourth proportional to 16,294, 22,485.74 and 9,220.28 is: 12,724.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,294 : 22,485.74 = 9,220.28 : x
  2. Step 2: Convert to fraction form
    16,294/22,485.74 = 9,220.28/x
  3. Step 3: Cross multiply
    16,294x = 22,485.74 × 9,220.28
  4. Step 4: Simplify right side
    16,294x = 207,324,818.81
  5. Step 5: Solve for x
    x = 207,324,818.81/16,294
  6. Step 6: Final answer
    x = 12,724.00

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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.