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Finding the Fourth Proportional to 59,808.30, 89,724.60 and 20,369.40

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Solution

The fourth proportional to 59,808.30, 89,724.60 and 20,369.40 is: 30,558.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,808.30 : 89,724.60 = 20,369.40 : x
  2. Step 2: Convert to fraction form
    59,808.30/89,724.60 = 20,369.40/x
  3. Step 3: Cross multiply
    59,808.30x = 89,724.60 × 20,369.40
  4. Step 4: Simplify right side
    59,808.30x = 1,827,636,267.24
  5. Step 5: Solve for x
    x = 1,827,636,267.24/59,808.30
  6. Step 6: Final answer
    x = 30,558.24

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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.