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Finding the Fourth Proportional to 12,624.53, 17,421.98 and 6,959.50

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Solution

The fourth proportional to 12,624.53, 17,421.98 and 6,959.50 is: 9,604.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.53 : 17,421.98 = 6,959.50 : x
  2. Step 2: Convert to fraction form
    12,624.53/17,421.98 = 6,959.50/x
  3. Step 3: Cross multiply
    12,624.53x = 17,421.98 × 6,959.50
  4. Step 4: Simplify right side
    12,624.53x = 121,248,309.03
  5. Step 5: Solve for x
    x = 121,248,309.03/12,624.53
  6. Step 6: Final answer
    x = 9,604.18

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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.