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Finding the Fourth Proportional to 62,770.84, 86,628 and 34,476.82

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Solution

The fourth proportional to 62,770.84, 86,628 and 34,476.82 is: 47,580.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,770.84 : 86,628 = 34,476.82 : x
  2. Step 2: Convert to fraction form
    62,770.84/86,628 = 34,476.82/x
  3. Step 3: Cross multiply
    62,770.84x = 86,628 × 34,476.82
  4. Step 4: Simplify right side
    62,770.84x = 2,986,657,962.96
  5. Step 5: Solve for x
    x = 2,986,657,962.96/62,770.84
  6. Step 6: Final answer
    x = 47,580.34

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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.