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Finding the Fourth Proportional to 60,971.12, 91,473.12 and 25,420.63

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Solution

The fourth proportional to 60,971.12, 91,473.12 and 25,420.63 is: 38,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,971.12 : 91,473.12 = 25,420.63 : x
  2. Step 2: Convert to fraction form
    60,971.12/91,473.12 = 25,420.63/x
  3. Step 3: Cross multiply
    60,971.12x = 91,473.12 × 25,420.63
  4. Step 4: Simplify right side
    60,971.12x = 2,325,304,338.47
  5. Step 5: Solve for x
    x = 2,325,304,338.47/60,971.12
  6. Step 6: Final answer
    x = 38,137.80

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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.