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Finding the Fourth Proportional to 39,935.60, 59,903.40 and 36,047.60

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Solution

The fourth proportional to 39,935.60, 59,903.40 and 36,047.60 is: 54,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,935.60 : 59,903.40 = 36,047.60 : x
  2. Step 2: Convert to fraction form
    39,935.60/59,903.40 = 36,047.60/x
  3. Step 3: Cross multiply
    39,935.60x = 59,903.40 × 36,047.60
  4. Step 4: Simplify right side
    39,935.60x = 2,159,373,801.84
  5. Step 5: Solve for x
    x = 2,159,373,801.84/39,935.60
  6. Step 6: Final answer
    x = 54,071.40

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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.