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Finding the Fourth Proportional to 19,585.08, 27,029.70 and 11,090.70

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Solution

The fourth proportional to 19,585.08, 27,029.70 and 11,090.70 is: 15,306.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,585.08 : 27,029.70 = 11,090.70 : x
  2. Step 2: Convert to fraction form
    19,585.08/27,029.70 = 11,090.70/x
  3. Step 3: Cross multiply
    19,585.08x = 27,029.70 × 11,090.70
  4. Step 4: Simplify right side
    19,585.08x = 299,778,293.79
  5. Step 5: Solve for x
    x = 299,778,293.79/19,585.08
  6. Step 6: Final answer
    x = 15,306.46

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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.