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Finding the Fourth Proportional to 34,937.84, 48,211.79 and 19,830.81

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Solution

The fourth proportional to 34,937.84, 48,211.79 and 19,830.81 is: 27,365.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,937.84 : 48,211.79 = 19,830.81 : x
  2. Step 2: Convert to fraction form
    34,937.84/48,211.79 = 19,830.81/x
  3. Step 3: Cross multiply
    34,937.84x = 48,211.79 × 19,830.81
  4. Step 4: Simplify right side
    34,937.84x = 956,078,928.89
  5. Step 5: Solve for x
    x = 956,078,928.89/34,937.84
  6. Step 6: Final answer
    x = 27,365.14

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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.