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Finding the Fourth Proportional to 5,389.88, 7,438.03 and 3,032.03

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Solution

The fourth proportional to 5,389.88, 7,438.03 and 3,032.03 is: 4,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.88 : 7,438.03 = 3,032.03 : x
  2. Step 2: Convert to fraction form
    5,389.88/7,438.03 = 3,032.03/x
  3. Step 3: Cross multiply
    5,389.88x = 7,438.03 × 3,032.03
  4. Step 4: Simplify right side
    5,389.88x = 22,552,341.12
  5. Step 5: Solve for x
    x = 22,552,341.12/5,389.88
  6. Step 6: Final answer
    x = 4,184.20

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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.