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Finding the Fourth Proportional to 14,101.50, 19,460.21 and 7,814.01

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Solution

The fourth proportional to 14,101.50, 19,460.21 and 7,814.01 is: 10,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,101.50 : 19,460.21 = 7,814.01 : x
  2. Step 2: Convert to fraction form
    14,101.50/19,460.21 = 7,814.01/x
  3. Step 3: Cross multiply
    14,101.50x = 19,460.21 × 7,814.01
  4. Step 4: Simplify right side
    14,101.50x = 152,062,236.47
  5. Step 5: Solve for x
    x = 152,062,236.47/14,101.50
  6. Step 6: Final answer
    x = 10,783.41

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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.