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Finding the Fourth Proportional to 70,437.50, 105,656.10 and 17,846.84

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Solution

The fourth proportional to 70,437.50, 105,656.10 and 17,846.84 is: 26,770.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,437.50 : 105,656.10 = 17,846.84 : x
  2. Step 2: Convert to fraction form
    70,437.50/105,656.10 = 17,846.84/x
  3. Step 3: Cross multiply
    70,437.50x = 105,656.10 × 17,846.84
  4. Step 4: Simplify right side
    70,437.50x = 1,885,627,511.72
  5. Step 5: Solve for x
    x = 1,885,627,511.72/70,437.50
  6. Step 6: Final answer
    x = 26,770.22

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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.