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Finding the Fourth Proportional to 10,617.63, 15,923.94 and 4,371.45

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Solution

The fourth proportional to 10,617.63, 15,923.94 and 4,371.45 is: 6,556.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,617.63 : 15,923.94 = 4,371.45 : x
  2. Step 2: Convert to fraction form
    10,617.63/15,923.94 = 4,371.45/x
  3. Step 3: Cross multiply
    10,617.63x = 15,923.94 × 4,371.45
  4. Step 4: Simplify right side
    10,617.63x = 69,610,707.51
  5. Step 5: Solve for x
    x = 69,610,707.51/10,617.63
  6. Step 6: Final answer
    x = 6,556.14

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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.