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Finding the Fourth Proportional to 51,282.80, 70,739.70 and 37,888.64

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Solution

The fourth proportional to 51,282.80, 70,739.70 and 37,888.64 is: 52,263.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,282.80 : 70,739.70 = 37,888.64 : x
  2. Step 2: Convert to fraction form
    51,282.80/70,739.70 = 37,888.64/x
  3. Step 3: Cross multiply
    51,282.80x = 70,739.70 × 37,888.64
  4. Step 4: Simplify right side
    51,282.80x = 2,680,231,027.01
  5. Step 5: Solve for x
    x = 2,680,231,027.01/51,282.80
  6. Step 6: Final answer
    x = 52,263.74

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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.