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Finding the Fourth Proportional to 9,051.70, 12,493.05 and 5,275.67

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Solution

The fourth proportional to 9,051.70, 12,493.05 and 5,275.67 is: 7,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,051.70 : 12,493.05 = 5,275.67 : x
  2. Step 2: Convert to fraction form
    9,051.70/12,493.05 = 5,275.67/x
  3. Step 3: Cross multiply
    9,051.70x = 12,493.05 × 5,275.67
  4. Step 4: Simplify right side
    9,051.70x = 65,909,209.09
  5. Step 5: Solve for x
    x = 65,909,209.09/9,051.70
  6. Step 6: Final answer
    x = 7,281.42

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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.