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Finding the Fourth Proportional to 28,503.40, 42,812.70 and 27,524.20

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Solution

The fourth proportional to 28,503.40, 42,812.70 and 27,524.20 is: 41,341.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,503.40 : 42,812.70 = 27,524.20 : x
  2. Step 2: Convert to fraction form
    28,503.40/42,812.70 = 27,524.20/x
  3. Step 3: Cross multiply
    28,503.40x = 42,812.70 × 27,524.20
  4. Step 4: Simplify right side
    28,503.40x = 1,178,385,317.34
  5. Step 5: Solve for x
    x = 1,178,385,317.34/28,503.40
  6. Step 6: Final answer
    x = 41,341.92

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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.