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Finding the Fourth Proportional to 51,892.76, 71,590.78 and 38,313.32

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Solution

The fourth proportional to 51,892.76, 71,590.78 and 38,313.32 is: 52,856.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,892.76 : 71,590.78 = 38,313.32 : x
  2. Step 2: Convert to fraction form
    51,892.76/71,590.78 = 38,313.32/x
  3. Step 3: Cross multiply
    51,892.76x = 71,590.78 × 38,313.32
  4. Step 4: Simplify right side
    51,892.76x = 2,742,880,463.19
  5. Step 5: Solve for x
    x = 2,742,880,463.19/51,892.76
  6. Step 6: Final answer
    x = 52,856.71

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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.