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Finding the Fourth Proportional to 14,359.98, 21,543.41 and 6,955.79

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Solution

The fourth proportional to 14,359.98, 21,543.41 and 6,955.79 is: 10,435.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,359.98 : 21,543.41 = 6,955.79 : x
  2. Step 2: Convert to fraction form
    14,359.98/21,543.41 = 6,955.79/x
  3. Step 3: Cross multiply
    14,359.98x = 21,543.41 × 6,955.79
  4. Step 4: Simplify right side
    14,359.98x = 149,851,435.84
  5. Step 5: Solve for x
    x = 149,851,435.84/14,359.98
  6. Step 6: Final answer
    x = 10,435.35

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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.