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Finding the Fourth Proportional to 17,739.90, 24,480.48 and 9,782.10

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Solution

The fourth proportional to 17,739.90, 24,480.48 and 9,782.10 is: 13,498.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,739.90 : 24,480.48 = 9,782.10 : x
  2. Step 2: Convert to fraction form
    17,739.90/24,480.48 = 9,782.10/x
  3. Step 3: Cross multiply
    17,739.90x = 24,480.48 × 9,782.10
  4. Step 4: Simplify right side
    17,739.90x = 239,470,503.41
  5. Step 5: Solve for x
    x = 239,470,503.41/17,739.90
  6. Step 6: Final answer
    x = 13,498.98

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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.