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Finding the Fourth Proportional to 11,392.79, 17,089.07 and 3,601.60

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Solution

The fourth proportional to 11,392.79, 17,089.07 and 3,601.60 is: 5,402.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.79 : 17,089.07 = 3,601.60 : x
  2. Step 2: Convert to fraction form
    11,392.79/17,089.07 = 3,601.60/x
  3. Step 3: Cross multiply
    11,392.79x = 17,089.07 × 3,601.60
  4. Step 4: Simplify right side
    11,392.79x = 61,547,994.51
  5. Step 5: Solve for x
    x = 61,547,994.51/11,392.79
  6. Step 6: Final answer
    x = 5,402.36

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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.