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Finding the Fourth Proportional to 15,059.28, 20,783.76 and 9,094.32

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Solution

The fourth proportional to 15,059.28, 20,783.76 and 9,094.32 is: 12,551.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,059.28 : 20,783.76 = 9,094.32 : x
  2. Step 2: Convert to fraction form
    15,059.28/20,783.76 = 9,094.32/x
  3. Step 3: Cross multiply
    15,059.28x = 20,783.76 × 9,094.32
  4. Step 4: Simplify right side
    15,059.28x = 189,014,164.24
  5. Step 5: Solve for x
    x = 189,014,164.24/15,059.28
  6. Step 6: Final answer
    x = 12,551.34

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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.