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Finding the Fourth Proportional to 61,172.84, 84,401.17 and 35,680.32

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Solution

The fourth proportional to 61,172.84, 84,401.17 and 35,680.32 is: 49,228.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,172.84 : 84,401.17 = 35,680.32 : x
  2. Step 2: Convert to fraction form
    61,172.84/84,401.17 = 35,680.32/x
  3. Step 3: Cross multiply
    61,172.84x = 84,401.17 × 35,680.32
  4. Step 4: Simplify right side
    61,172.84x = 3,011,460,664.77
  5. Step 5: Solve for x
    x = 3,011,460,664.77/61,172.84
  6. Step 6: Final answer
    x = 49,228.72

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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.