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Finding the Fourth Proportional to 70,684.89, 97,549.86 and 40,474.32

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Solution

The fourth proportional to 70,684.89, 97,549.86 and 40,474.32 is: 55,857.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,684.89 : 97,549.86 = 40,474.32 : x
  2. Step 2: Convert to fraction form
    70,684.89/97,549.86 = 40,474.32/x
  3. Step 3: Cross multiply
    70,684.89x = 97,549.86 × 40,474.32
  4. Step 4: Simplify right side
    70,684.89x = 3,948,264,249.60
  5. Step 5: Solve for x
    x = 3,948,264,249.60/70,684.89
  6. Step 6: Final answer
    x = 55,857.26

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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.