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Finding the Fourth Proportional to 13,003.58, 17,946.60 and 8,531.12

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Solution

The fourth proportional to 13,003.58, 17,946.60 and 8,531.12 is: 11,774.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.58 : 17,946.60 = 8,531.12 : x
  2. Step 2: Convert to fraction form
    13,003.58/17,946.60 = 8,531.12/x
  3. Step 3: Cross multiply
    13,003.58x = 17,946.60 × 8,531.12
  4. Step 4: Simplify right side
    13,003.58x = 153,104,598.19
  5. Step 5: Solve for x
    x = 153,104,598.19/13,003.58
  6. Step 6: Final answer
    x = 11,774.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.