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Finding the Fourth Proportional to 61,628.70, 92,313.45 and 51,260.70

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Solution

The fourth proportional to 61,628.70, 92,313.45 and 51,260.70 is: 76,783.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,628.70 : 92,313.45 = 51,260.70 : x
  2. Step 2: Convert to fraction form
    61,628.70/92,313.45 = 51,260.70/x
  3. Step 3: Cross multiply
    61,628.70x = 92,313.45 × 51,260.70
  4. Step 4: Simplify right side
    61,628.70x = 4,732,052,066.42
  5. Step 5: Solve for x
    x = 4,732,052,066.42/61,628.70
  6. Step 6: Final answer
    x = 76,783.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.