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Finding the Fourth Proportional to 66,000.62, 99,011.10 and 21,616.67

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Solution

The fourth proportional to 66,000.62, 99,011.10 and 21,616.67 is: 32,428.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,000.62 : 99,011.10 = 21,616.67 : x
  2. Step 2: Convert to fraction form
    66,000.62/99,011.10 = 21,616.67/x
  3. Step 3: Cross multiply
    66,000.62x = 99,011.10 × 21,616.67
  4. Step 4: Simplify right side
    66,000.62x = 2,140,290,275.04
  5. Step 5: Solve for x
    x = 2,140,290,275.04/66,000.62
  6. Step 6: Final answer
    x = 32,428.34

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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.