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Finding the Fourth Proportional to 39,188.08, 58,782.08 and 9,605.64

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Solution

The fourth proportional to 39,188.08, 58,782.08 and 9,605.64 is: 14,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188.08 : 58,782.08 = 9,605.64 : x
  2. Step 2: Convert to fraction form
    39,188.08/58,782.08 = 9,605.64/x
  3. Step 3: Cross multiply
    39,188.08x = 58,782.08 × 9,605.64
  4. Step 4: Simplify right side
    39,188.08x = 564,639,385.71
  5. Step 5: Solve for x
    x = 564,639,385.71/39,188.08
  6. Step 6: Final answer
    x = 14,408.45

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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.