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Finding the Fourth Proportional to 15,999.15, 22,080.93 and 9,283.35

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Solution

The fourth proportional to 15,999.15, 22,080.93 and 9,283.35 is: 12,812.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.15 : 22,080.93 = 9,283.35 : x
  2. Step 2: Convert to fraction form
    15,999.15/22,080.93 = 9,283.35/x
  3. Step 3: Cross multiply
    15,999.15x = 22,080.93 × 9,283.35
  4. Step 4: Simplify right side
    15,999.15x = 204,985,001.52
  5. Step 5: Solve for x
    x = 204,985,001.52/15,999.15
  6. Step 6: Final answer
    x = 12,812.24

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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.