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Finding the Fourth Proportional to 67,038.84, 100,530.92 and 29,090.75

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Solution

The fourth proportional to 67,038.84, 100,530.92 and 29,090.75 is: 43,624.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,038.84 : 100,530.92 = 29,090.75 : x
  2. Step 2: Convert to fraction form
    67,038.84/100,530.92 = 29,090.75/x
  3. Step 3: Cross multiply
    67,038.84x = 100,530.92 × 29,090.75
  4. Step 4: Simplify right side
    67,038.84x = 2,924,519,431.06
  5. Step 5: Solve for x
    x = 2,924,519,431.06/67,038.84
  6. Step 6: Final answer
    x = 43,624.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.