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Finding the Fourth Proportional to 38,259.50, 52,798.11 and 21,492.50

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Solution

The fourth proportional to 38,259.50, 52,798.11 and 21,492.50 is: 29,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,259.50 : 52,798.11 = 21,492.50 : x
  2. Step 2: Convert to fraction form
    38,259.50/52,798.11 = 21,492.50/x
  3. Step 3: Cross multiply
    38,259.50x = 52,798.11 × 21,492.50
  4. Step 4: Simplify right side
    38,259.50x = 1,134,763,379.18
  5. Step 5: Solve for x
    x = 1,134,763,379.18/38,259.50
  6. Step 6: Final answer
    x = 29,659.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.