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Finding the Fourth Proportional to 73,401.45, 101,294.51 and 39,867.45

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Solution

The fourth proportional to 73,401.45, 101,294.51 and 39,867.45 is: 55,017.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,401.45 : 101,294.51 = 39,867.45 : x
  2. Step 2: Convert to fraction form
    73,401.45/101,294.51 = 39,867.45/x
  3. Step 3: Cross multiply
    73,401.45x = 101,294.51 × 39,867.45
  4. Step 4: Simplify right side
    73,401.45x = 4,038,353,812.70
  5. Step 5: Solve for x
    x = 4,038,353,812.70/73,401.45
  6. Step 6: Final answer
    x = 55,017.36

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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.