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Finding the Fourth Proportional to 38,998.99, 58,498.49 and 9,416.80

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Solution

The fourth proportional to 38,998.99, 58,498.49 and 9,416.80 is: 14,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,998.99 : 58,498.49 = 9,416.80 : x
  2. Step 2: Convert to fraction form
    38,998.99/58,498.49 = 9,416.80/x
  3. Step 3: Cross multiply
    38,998.99x = 58,498.49 × 9,416.80
  4. Step 4: Simplify right side
    38,998.99x = 550,868,580.63
  5. Step 5: Solve for x
    x = 550,868,580.63/38,998.99
  6. Step 6: Final answer
    x = 14,125.20

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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.