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Finding the Fourth Proportional to 10,435.95, 15,653.90 and 6,932.79

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Solution

The fourth proportional to 10,435.95, 15,653.90 and 6,932.79 is: 10,399.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,435.95 : 15,653.90 = 6,932.79 : x
  2. Step 2: Convert to fraction form
    10,435.95/15,653.90 = 6,932.79/x
  3. Step 3: Cross multiply
    10,435.95x = 15,653.90 × 6,932.79
  4. Step 4: Simplify right side
    10,435.95x = 108,525,218.71
  5. Step 5: Solve for x
    x = 108,525,218.71/10,435.95
  6. Step 6: Final answer
    x = 10,399.17

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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.