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Finding the Fourth Proportional to 70,817.86, 97,728.96 and 40,604.95

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Solution

The fourth proportional to 70,817.86, 97,728.96 and 40,604.95 is: 56,035.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,817.86 : 97,728.96 = 40,604.95 : x
  2. Step 2: Convert to fraction form
    70,817.86/97,728.96 = 40,604.95/x
  3. Step 3: Cross multiply
    70,817.86x = 97,728.96 × 40,604.95
  4. Step 4: Simplify right side
    70,817.86x = 3,968,279,534.35
  5. Step 5: Solve for x
    x = 3,968,279,534.35/70,817.86
  6. Step 6: Final answer
    x = 56,035.01

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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.