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Finding the Fourth Proportional to 15,073.02, 20,802.92 and 8,360.14

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Solution

The fourth proportional to 15,073.02, 20,802.92 and 8,360.14 is: 11,538.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,073.02 : 20,802.92 = 8,360.14 : x
  2. Step 2: Convert to fraction form
    15,073.02/20,802.92 = 8,360.14/x
  3. Step 3: Cross multiply
    15,073.02x = 20,802.92 × 8,360.14
  4. Step 4: Simplify right side
    15,073.02x = 173,915,323.61
  5. Step 5: Solve for x
    x = 173,915,323.61/15,073.02
  6. Step 6: Final answer
    x = 11,538.19

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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.