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Finding the Fourth Proportional to 66,304.94, 91,492.70 and 39,448.58

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Solution

The fourth proportional to 66,304.94, 91,492.70 and 39,448.58 is: 54,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,304.94 : 91,492.70 = 39,448.58 : x
  2. Step 2: Convert to fraction form
    66,304.94/91,492.70 = 39,448.58/x
  3. Step 3: Cross multiply
    66,304.94x = 91,492.70 × 39,448.58
  4. Step 4: Simplify right side
    66,304.94x = 3,609,257,095.37
  5. Step 5: Solve for x
    x = 3,609,257,095.37/66,304.94
  6. Step 6: Final answer
    x = 54,434.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.