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Finding the Fourth Proportional to 13,309.53, 18,367.06 and 7,341.07

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Solution

The fourth proportional to 13,309.53, 18,367.06 and 7,341.07 is: 10,130.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.53 : 18,367.06 = 7,341.07 : x
  2. Step 2: Convert to fraction form
    13,309.53/18,367.06 = 7,341.07/x
  3. Step 3: Cross multiply
    13,309.53x = 18,367.06 × 7,341.07
  4. Step 4: Simplify right side
    13,309.53x = 134,833,744.61
  5. Step 5: Solve for x
    x = 134,833,744.61/13,309.53
  6. Step 6: Final answer
    x = 10,130.62

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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.