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Finding the Fourth Proportional to 29,431.95, 40,597.86 and 25,664.16

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Solution

The fourth proportional to 29,431.95, 40,597.86 and 25,664.16 is: 35,400.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,431.95 : 40,597.86 = 25,664.16 : x
  2. Step 2: Convert to fraction form
    29,431.95/40,597.86 = 25,664.16/x
  3. Step 3: Cross multiply
    29,431.95x = 40,597.86 × 25,664.16
  4. Step 4: Simplify right side
    29,431.95x = 1,041,909,974.70
  5. Step 5: Solve for x
    x = 1,041,909,974.70/29,431.95
  6. Step 6: Final answer
    x = 35,400.64

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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.