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Finding the Fourth Proportional to 13,783.53, 19,020.51 and 7,495.50

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Solution

The fourth proportional to 13,783.53, 19,020.51 and 7,495.50 is: 10,343.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.53 : 19,020.51 = 7,495.50 : x
  2. Step 2: Convert to fraction form
    13,783.53/19,020.51 = 7,495.50/x
  3. Step 3: Cross multiply
    13,783.53x = 19,020.51 × 7,495.50
  4. Step 4: Simplify right side
    13,783.53x = 142,568,232.71
  5. Step 5: Solve for x
    x = 142,568,232.71/13,783.53
  6. Step 6: Final answer
    x = 10,343.38

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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.