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Finding the Fourth Proportional to 66,415.52, 99,623.10 and 22,045.62

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Solution

The fourth proportional to 66,415.52, 99,623.10 and 22,045.62 is: 33,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,415.52 : 99,623.10 = 22,045.62 : x
  2. Step 2: Convert to fraction form
    66,415.52/99,623.10 = 22,045.62/x
  3. Step 3: Cross multiply
    66,415.52x = 99,623.10 × 22,045.62
  4. Step 4: Simplify right side
    66,415.52x = 2,196,253,005.82
  5. Step 5: Solve for x
    x = 2,196,253,005.82/66,415.52
  6. Step 6: Final answer
    x = 33,068.37

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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.