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Finding the Fourth Proportional to 13,207.58, 19,693.55 and 11,740.58

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Solution

The fourth proportional to 13,207.58, 19,693.55 and 11,740.58 is: 17,506.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.58 : 19,693.55 = 11,740.58 : x
  2. Step 2: Convert to fraction form
    13,207.58/19,693.55 = 11,740.58/x
  3. Step 3: Cross multiply
    13,207.58x = 19,693.55 × 11,740.58
  4. Step 4: Simplify right side
    13,207.58x = 231,213,542.09
  5. Step 5: Solve for x
    x = 231,213,542.09/13,207.58
  6. Step 6: Final answer
    x = 17,506.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.