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Finding the Fourth Proportional to 66,969.84, 92,431.12 and 44,309.28

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Solution

The fourth proportional to 66,969.84, 92,431.12 and 44,309.28 is: 61,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,969.84 : 92,431.12 = 44,309.28 : x
  2. Step 2: Convert to fraction form
    66,969.84/92,431.12 = 44,309.28/x
  3. Step 3: Cross multiply
    66,969.84x = 92,431.12 × 44,309.28
  4. Step 4: Simplify right side
    66,969.84x = 4,095,556,376.79
  5. Step 5: Solve for x
    x = 4,095,556,376.79/66,969.84
  6. Step 6: Final answer
    x = 61,155.24

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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.