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Finding the Fourth Proportional to 60,571.40, 90,861.72 and 18,455.08

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Solution

The fourth proportional to 60,571.40, 90,861.72 and 18,455.08 is: 27,684.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,571.40 : 90,861.72 = 18,455.08 : x
  2. Step 2: Convert to fraction form
    60,571.40/90,861.72 = 18,455.08/x
  3. Step 3: Cross multiply
    60,571.40x = 90,861.72 × 18,455.08
  4. Step 4: Simplify right side
    60,571.40x = 1,676,860,084.38
  5. Step 5: Solve for x
    x = 1,676,860,084.38/60,571.40
  6. Step 6: Final answer
    x = 27,684.02

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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.