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Finding the Fourth Proportional to 66,000.87, 98,999.67 and 19,254.15

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Solution

The fourth proportional to 66,000.87, 98,999.67 and 19,254.15 is: 28,880.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,000.87 : 98,999.67 = 19,254.15 : x
  2. Step 2: Convert to fraction form
    66,000.87/98,999.67 = 19,254.15/x
  3. Step 3: Cross multiply
    66,000.87x = 98,999.67 × 19,254.15
  4. Step 4: Simplify right side
    66,000.87x = 1,906,154,496.13
  5. Step 5: Solve for x
    x = 1,906,154,496.13/66,000.87
  6. Step 6: Final answer
    x = 28,880.75

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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.