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Finding the Fourth Proportional to 19,277.40, 28,937.70 and 14,914.20

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Solution

The fourth proportional to 19,277.40, 28,937.70 and 14,914.20 is: 22,388.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,277.40 : 28,937.70 = 14,914.20 : x
  2. Step 2: Convert to fraction form
    19,277.40/28,937.70 = 14,914.20/x
  3. Step 3: Cross multiply
    19,277.40x = 28,937.70 × 14,914.20
  4. Step 4: Simplify right side
    19,277.40x = 431,582,645.34
  5. Step 5: Solve for x
    x = 431,582,645.34/19,277.40
  6. Step 6: Final answer
    x = 22,388.01

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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.