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Finding the Fourth Proportional to 71,417.40, 98,563.08 and 39,592.45

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Solution

The fourth proportional to 71,417.40, 98,563.08 and 39,592.45 is: 54,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,417.40 : 98,563.08 = 39,592.45 : x
  2. Step 2: Convert to fraction form
    71,417.40/98,563.08 = 39,592.45/x
  3. Step 3: Cross multiply
    71,417.40x = 98,563.08 × 39,592.45
  4. Step 4: Simplify right side
    71,417.40x = 3,902,353,311.30
  5. Step 5: Solve for x
    x = 3,902,353,311.30/71,417.40
  6. Step 6: Final answer
    x = 54,641.50

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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.