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Finding the Fourth Proportional to 23,679.40, 35,547.90 and 17,789.80

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Solution

The fourth proportional to 23,679.40, 35,547.90 and 17,789.80 is: 26,706.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,679.40 : 35,547.90 = 17,789.80 : x
  2. Step 2: Convert to fraction form
    23,679.40/35,547.90 = 17,789.80/x
  3. Step 3: Cross multiply
    23,679.40x = 35,547.90 × 17,789.80
  4. Step 4: Simplify right side
    23,679.40x = 632,390,031.42
  5. Step 5: Solve for x
    x = 632,390,031.42/23,679.40
  6. Step 6: Final answer
    x = 26,706.34

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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.