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Finding the Fourth Proportional to 66,263.97, 99,319.97 and 32,909.49

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Solution

The fourth proportional to 66,263.97, 99,319.97 and 32,909.49 is: 49,326.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,263.97 : 99,319.97 = 32,909.49 : x
  2. Step 2: Convert to fraction form
    66,263.97/99,319.97 = 32,909.49/x
  3. Step 3: Cross multiply
    66,263.97x = 99,319.97 × 32,909.49
  4. Step 4: Simplify right side
    66,263.97x = 3,268,569,641.79
  5. Step 5: Solve for x
    x = 3,268,569,641.79/66,263.97
  6. Step 6: Final answer
    x = 49,326.50

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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.