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Finding the Fourth Proportional to 66,070.80, 99,110.88 and 26,628.12

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Solution

The fourth proportional to 66,070.80, 99,110.88 and 26,628.12 is: 39,944.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,070.80 : 99,110.88 = 26,628.12 : x
  2. Step 2: Convert to fraction form
    66,070.80/99,110.88 = 26,628.12/x
  3. Step 3: Cross multiply
    66,070.80x = 99,110.88 × 26,628.12
  4. Step 4: Simplify right side
    66,070.80x = 2,639,136,405.95
  5. Step 5: Solve for x
    x = 2,639,136,405.95/66,070.80
  6. Step 6: Final answer
    x = 39,944.07

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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.