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Finding the Fourth Proportional to 33,802.40, 50,698.80 and 10,431.20

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Solution

The fourth proportional to 33,802.40, 50,698.80 and 10,431.20 is: 15,645.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,802.40 : 50,698.80 = 10,431.20 : x
  2. Step 2: Convert to fraction form
    33,802.40/50,698.80 = 10,431.20/x
  3. Step 3: Cross multiply
    33,802.40x = 50,698.80 × 10,431.20
  4. Step 4: Simplify right side
    33,802.40x = 528,849,322.56
  5. Step 5: Solve for x
    x = 528,849,322.56/33,802.40
  6. Step 6: Final answer
    x = 15,645.32

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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.