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Finding the Fourth Proportional to 70,609.50, 97,449.75 and 40,801.50

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Solution

The fourth proportional to 70,609.50, 97,449.75 and 40,801.50 is: 56,311.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,609.50 : 97,449.75 = 40,801.50 : x
  2. Step 2: Convert to fraction form
    70,609.50/97,449.75 = 40,801.50/x
  3. Step 3: Cross multiply
    70,609.50x = 97,449.75 × 40,801.50
  4. Step 4: Simplify right side
    70,609.50x = 3,976,095,974.63
  5. Step 5: Solve for x
    x = 3,976,095,974.63/70,609.50
  6. Step 6: Final answer
    x = 56,311.06

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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.