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Finding the Fourth Proportional to 51,783.12, 71,475.48 and 33,898.32

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Solution

The fourth proportional to 51,783.12, 71,475.48 and 33,898.32 is: 46,789.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,783.12 : 71,475.48 = 33,898.32 : x
  2. Step 2: Convert to fraction form
    51,783.12/71,475.48 = 33,898.32/x
  3. Step 3: Cross multiply
    51,783.12x = 71,475.48 × 33,898.32
  4. Step 4: Simplify right side
    51,783.12x = 2,422,898,693.19
  5. Step 5: Solve for x
    x = 2,422,898,693.19/51,783.12
  6. Step 6: Final answer
    x = 46,789.35

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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.