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Finding the Fourth Proportional to 33,240.40, 49,918.20 and 17,688.40

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Solution

The fourth proportional to 33,240.40, 49,918.20 and 17,688.40 is: 26,563.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,240.40 : 49,918.20 = 17,688.40 : x
  2. Step 2: Convert to fraction form
    33,240.40/49,918.20 = 17,688.40/x
  3. Step 3: Cross multiply
    33,240.40x = 49,918.20 × 17,688.40
  4. Step 4: Simplify right side
    33,240.40x = 882,973,088.88
  5. Step 5: Solve for x
    x = 882,973,088.88/33,240.40
  6. Step 6: Final answer
    x = 26,563.25

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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.