Home / 66,601.28-91,907.10-39,395.00

Finding the Fourth Proportional to 66,601.28, 91,907.10 and 39,395.00

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Solution

The fourth proportional to 66,601.28, 91,907.10 and 39,395.00 is: 54,363.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,601.28 : 91,907.10 = 39,395.00 : x
  2. Step 2: Convert to fraction form
    66,601.28/91,907.10 = 39,395.00/x
  3. Step 3: Cross multiply
    66,601.28x = 91,907.10 × 39,395.00
  4. Step 4: Simplify right side
    66,601.28x = 3,620,679,744.96
  5. Step 5: Solve for x
    x = 3,620,679,744.96/66,601.28
  6. Step 6: Final answer
    x = 54,363.52

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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.