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Finding the Fourth Proportional to 11,570.40, 17,355.60 and 10,695.60

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Solution

The fourth proportional to 11,570.40, 17,355.60 and 10,695.60 is: 16,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,570.40 : 17,355.60 = 10,695.60 : x
  2. Step 2: Convert to fraction form
    11,570.40/17,355.60 = 10,695.60/x
  3. Step 3: Cross multiply
    11,570.40x = 17,355.60 × 10,695.60
  4. Step 4: Simplify right side
    11,570.40x = 185,628,555.36
  5. Step 5: Solve for x
    x = 185,628,555.36/11,570.40
  6. Step 6: Final answer
    x = 16,043.40

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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.