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Finding the Fourth Proportional to 70,080.94, 105,135.25 and 25,708.10

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Solution

The fourth proportional to 70,080.94, 105,135.25 and 25,708.10 is: 38,567.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,080.94 : 105,135.25 = 25,708.10 : x
  2. Step 2: Convert to fraction form
    70,080.94/105,135.25 = 25,708.10/x
  3. Step 3: Cross multiply
    70,080.94x = 105,135.25 × 25,708.10
  4. Step 4: Simplify right side
    70,080.94x = 2,702,827,520.53
  5. Step 5: Solve for x
    x = 2,702,827,520.53/70,080.94
  6. Step 6: Final answer
    x = 38,567.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.