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Finding the Fourth Proportional to 10,645.63, 15,969.75 and 5,955.55

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Solution

The fourth proportional to 10,645.63, 15,969.75 and 5,955.55 is: 8,934.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.63 : 15,969.75 = 5,955.55 : x
  2. Step 2: Convert to fraction form
    10,645.63/15,969.75 = 5,955.55/x
  3. Step 3: Cross multiply
    10,645.63x = 15,969.75 × 5,955.55
  4. Step 4: Simplify right side
    10,645.63x = 95,108,644.61
  5. Step 5: Solve for x
    x = 95,108,644.61/10,645.63
  6. Step 6: Final answer
    x = 8,934.06

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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.