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Finding the Fourth Proportional to 66,070.17, 99,105.49 and 19,323.05

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Solution

The fourth proportional to 66,070.17, 99,105.49 and 19,323.05 is: 28,984.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,070.17 : 99,105.49 = 19,323.05 : x
  2. Step 2: Convert to fraction form
    66,070.17/99,105.49 = 19,323.05/x
  3. Step 3: Cross multiply
    66,070.17x = 99,105.49 × 19,323.05
  4. Step 4: Simplify right side
    66,070.17x = 1,915,019,794.71
  5. Step 5: Solve for x
    x = 1,915,019,794.71/66,070.17
  6. Step 6: Final answer
    x = 28,984.64

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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.