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Finding the Fourth Proportional to 3,555.36, 5,332.30 and 957.68

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Solution

The fourth proportional to 3,555.36, 5,332.30 and 957.68 is: 1,436.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.36 : 5,332.30 = 957.68 : x
  2. Step 2: Convert to fraction form
    3,555.36/5,332.30 = 957.68/x
  3. Step 3: Cross multiply
    3,555.36x = 5,332.30 × 957.68
  4. Step 4: Simplify right side
    3,555.36x = 5,106,637.06
  5. Step 5: Solve for x
    x = 5,106,637.06/3,555.36
  6. Step 6: Final answer
    x = 1,436.32

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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.