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Finding the Fourth Proportional to 16,615.40, 23,313.40 and 16,615.40

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Solution

The fourth proportional to 16,615.40, 23,313.40 and 16,615.40 is: 23,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,615.40 : 23,313.40 = 16,615.40 : x
  2. Step 2: Convert to fraction form
    16,615.40/23,313.40 = 16,615.40/x
  3. Step 3: Cross multiply
    16,615.40x = 23,313.40 × 16,615.40
  4. Step 4: Simplify right side
    16,615.40x = 387,361,466.36
  5. Step 5: Solve for x
    x = 387,361,466.36/16,615.40
  6. Step 6: Final answer
    x = 23,313.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.