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Finding the Fourth Proportional to 5,616.38, 8,417.74 and 3,973.40

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Solution

The fourth proportional to 5,616.38, 8,417.74 and 3,973.40 is: 5,955.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.38 : 8,417.74 = 3,973.40 : x
  2. Step 2: Convert to fraction form
    5,616.38/8,417.74 = 3,973.40/x
  3. Step 3: Cross multiply
    5,616.38x = 8,417.74 × 3,973.40
  4. Step 4: Simplify right side
    5,616.38x = 33,447,048.12
  5. Step 5: Solve for x
    x = 33,447,048.12/5,616.38
  6. Step 6: Final answer
    x = 5,955.27

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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.