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Finding the Fourth Proportional to 38,952.80, 58,455.08 and 14,328.80

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Solution

The fourth proportional to 38,952.80, 58,455.08 and 14,328.80 is: 21,502.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,952.80 : 58,455.08 = 14,328.80 : x
  2. Step 2: Convert to fraction form
    38,952.80/58,455.08 = 14,328.80/x
  3. Step 3: Cross multiply
    38,952.80x = 58,455.08 × 14,328.80
  4. Step 4: Simplify right side
    38,952.80x = 837,591,150.30
  5. Step 5: Solve for x
    x = 837,591,150.30/38,952.80
  6. Step 6: Final answer
    x = 21,502.72

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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.