Home / 66,000.06-99,000.09-19,256.70

Finding the Fourth Proportional to 66,000.06, 99,000.09 and 19,256.70

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Solution

The fourth proportional to 66,000.06, 99,000.09 and 19,256.70 is: 28,885.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,000.06 : 99,000.09 = 19,256.70 : x
  2. Step 2: Convert to fraction form
    66,000.06/99,000.09 = 19,256.70/x
  3. Step 3: Cross multiply
    66,000.06x = 99,000.09 × 19,256.70
  4. Step 4: Simplify right side
    66,000.06x = 1,906,415,033.10
  5. Step 5: Solve for x
    x = 1,906,415,033.10/66,000.06
  6. Step 6: Final answer
    x = 28,885.05

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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.