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Finding the Fourth Proportional to 45,253.95, 67,770.09 and 31,894.08

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Solution

The fourth proportional to 45,253.95, 67,770.09 and 31,894.08 is: 47,763.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,253.95 : 67,770.09 = 31,894.08 : x
  2. Step 2: Convert to fraction form
    45,253.95/67,770.09 = 31,894.08/x
  3. Step 3: Cross multiply
    45,253.95x = 67,770.09 × 31,894.08
  4. Step 4: Simplify right side
    45,253.95x = 2,161,464,672.07
  5. Step 5: Solve for x
    x = 2,161,464,672.07/45,253.95
  6. Step 6: Final answer
    x = 47,763.01

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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.