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Finding the Fourth Proportional to 52,833.76, 72,912.88 and 31,608.96

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Solution

The fourth proportional to 52,833.76, 72,912.88 and 31,608.96 is: 43,621.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,833.76 : 72,912.88 = 31,608.96 : x
  2. Step 2: Convert to fraction form
    52,833.76/72,912.88 = 31,608.96/x
  3. Step 3: Cross multiply
    52,833.76x = 72,912.88 × 31,608.96
  4. Step 4: Simplify right side
    52,833.76x = 2,304,700,307.40
  5. Step 5: Solve for x
    x = 2,304,700,307.40/52,833.76
  6. Step 6: Final answer
    x = 43,621.74

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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.