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Finding the Fourth Proportional to 61,037.40, 91,620.81 and 54,062.67

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Solution

The fourth proportional to 61,037.40, 91,620.81 and 54,062.67 is: 81,151.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,037.40 : 91,620.81 = 54,062.67 : x
  2. Step 2: Convert to fraction form
    61,037.40/91,620.81 = 54,062.67/x
  3. Step 3: Cross multiply
    61,037.40x = 91,620.81 × 54,062.67
  4. Step 4: Simplify right side
    61,037.40x = 4,953,265,616.16
  5. Step 5: Solve for x
    x = 4,953,265,616.16/61,037.40
  6. Step 6: Final answer
    x = 81,151.32

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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.