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Finding the Fourth Proportional to 50,853.88, 70,140.90 and 29,631.88

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Solution

The fourth proportional to 50,853.88, 70,140.90 and 29,631.88 is: 40,870.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,853.88 : 70,140.90 = 29,631.88 : x
  2. Step 2: Convert to fraction form
    50,853.88/70,140.90 = 29,631.88/x
  3. Step 3: Cross multiply
    50,853.88x = 70,140.90 × 29,631.88
  4. Step 4: Simplify right side
    50,853.88x = 2,078,406,731.89
  5. Step 5: Solve for x
    x = 2,078,406,731.89/50,853.88
  6. Step 6: Final answer
    x = 40,870.17

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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.