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Finding the Fourth Proportional to 8,530.99, 12,798.73 and 7,600.31

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Solution

The fourth proportional to 8,530.99, 12,798.73 and 7,600.31 is: 11,402.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.99 : 12,798.73 = 7,600.31 : x
  2. Step 2: Convert to fraction form
    8,530.99/12,798.73 = 7,600.31/x
  3. Step 3: Cross multiply
    8,530.99x = 12,798.73 × 7,600.31
  4. Step 4: Simplify right side
    8,530.99x = 97,274,309.11
  5. Step 5: Solve for x
    x = 97,274,309.11/8,530.99
  6. Step 6: Final answer
    x = 11,402.47

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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.