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Finding the Fourth Proportional to 25,673.40, 38,510.10 and 16,918.20

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Solution

The fourth proportional to 25,673.40, 38,510.10 and 16,918.20 is: 25,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,673.40 : 38,510.10 = 16,918.20 : x
  2. Step 2: Convert to fraction form
    25,673.40/38,510.10 = 16,918.20/x
  3. Step 3: Cross multiply
    25,673.40x = 38,510.10 × 16,918.20
  4. Step 4: Simplify right side
    25,673.40x = 651,521,573.82
  5. Step 5: Solve for x
    x = 651,521,573.82/25,673.40
  6. Step 6: Final answer
    x = 25,377.30

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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.