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Finding the Fourth Proportional to 71,353.22, 98,461.04 and 39,513.74

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Solution

The fourth proportional to 71,353.22, 98,461.04 and 39,513.74 is: 54,525.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,353.22 : 98,461.04 = 39,513.74 : x
  2. Step 2: Convert to fraction form
    71,353.22/98,461.04 = 39,513.74/x
  3. Step 3: Cross multiply
    71,353.22x = 98,461.04 × 39,513.74
  4. Step 4: Simplify right side
    71,353.22x = 3,890,563,934.69
  5. Step 5: Solve for x
    x = 3,890,563,934.69/71,353.22
  6. Step 6: Final answer
    x = 54,525.42

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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.