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Finding the Fourth Proportional to 62,776.40, 86,610.28 and 35,548.76

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Solution

The fourth proportional to 62,776.40, 86,610.28 and 35,548.76 is: 49,045.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,776.40 : 86,610.28 = 35,548.76 : x
  2. Step 2: Convert to fraction form
    62,776.40/86,610.28 = 35,548.76/x
  3. Step 3: Cross multiply
    62,776.40x = 86,610.28 × 35,548.76
  4. Step 4: Simplify right side
    62,776.40x = 3,078,888,057.25
  5. Step 5: Solve for x
    x = 3,078,888,057.25/62,776.40
  6. Step 6: Final answer
    x = 49,045.31

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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.