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Finding the Fourth Proportional to 53,622.84, 74,003.03 and 30,962.79

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Solution

The fourth proportional to 53,622.84, 74,003.03 and 30,962.79 is: 42,730.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,622.84 : 74,003.03 = 30,962.79 : x
  2. Step 2: Convert to fraction form
    53,622.84/74,003.03 = 30,962.79/x
  3. Step 3: Cross multiply
    53,622.84x = 74,003.03 × 30,962.79
  4. Step 4: Simplify right side
    53,622.84x = 2,291,340,122.44
  5. Step 5: Solve for x
    x = 2,291,340,122.44/53,622.84
  6. Step 6: Final answer
    x = 42,730.67

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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.