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Finding the Fourth Proportional to 26,262.40, 39,422.40 and 16,412.80

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Solution

The fourth proportional to 26,262.40, 39,422.40 and 16,412.80 is: 24,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,262.40 : 39,422.40 = 16,412.80 : x
  2. Step 2: Convert to fraction form
    26,262.40/39,422.40 = 16,412.80/x
  3. Step 3: Cross multiply
    26,262.40x = 39,422.40 × 16,412.80
  4. Step 4: Simplify right side
    26,262.40x = 647,031,966.72
  5. Step 5: Solve for x
    x = 647,031,966.72/26,262.40
  6. Step 6: Final answer
    x = 24,637.20

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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.