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Finding the Fourth Proportional to 39,808.16, 59,710.08 and 12,104

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Solution

The fourth proportional to 39,808.16, 59,710.08 and 12,104 is: 18,155.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,808.16 : 59,710.08 = 12,104 : x
  2. Step 2: Convert to fraction form
    39,808.16/59,710.08 = 12,104/x
  3. Step 3: Cross multiply
    39,808.16x = 59,710.08 × 12,104
  4. Step 4: Simplify right side
    39,808.16x = 722,730,808.32
  5. Step 5: Solve for x
    x = 722,730,808.32/39,808.16
  6. Step 6: Final answer
    x = 18,155.34

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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.