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Finding the Fourth Proportional to 69,740.70, 96,240.15 and 39,528.81

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Solution

The fourth proportional to 69,740.70, 96,240.15 and 39,528.81 is: 54,548.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,740.70 : 96,240.15 = 39,528.81 : x
  2. Step 2: Convert to fraction form
    69,740.70/96,240.15 = 39,528.81/x
  3. Step 3: Cross multiply
    69,740.70x = 96,240.15 × 39,528.81
  4. Step 4: Simplify right side
    69,740.70x = 3,804,258,603.72
  5. Step 5: Solve for x
    x = 3,804,258,603.72/69,740.70
  6. Step 6: Final answer
    x = 54,548.62

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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.