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Finding the Fourth Proportional to 39,873.16, 59,807.58 and 12,169

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Solution

The fourth proportional to 39,873.16, 59,807.58 and 12,169 is: 18,252.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873.16 : 59,807.58 = 12,169 : x
  2. Step 2: Convert to fraction form
    39,873.16/59,807.58 = 12,169/x
  3. Step 3: Cross multiply
    39,873.16x = 59,807.58 × 12,169
  4. Step 4: Simplify right side
    39,873.16x = 727,798,441.02
  5. Step 5: Solve for x
    x = 727,798,441.02/39,873.16
  6. Step 6: Final answer
    x = 18,252.84

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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.