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Finding the Fourth Proportional to 51,193.70, 70,653.03 and 28,534.76

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Solution

The fourth proportional to 51,193.70, 70,653.03 and 28,534.76 is: 39,381.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,193.70 : 70,653.03 = 28,534.76 : x
  2. Step 2: Convert to fraction form
    51,193.70/70,653.03 = 28,534.76/x
  3. Step 3: Cross multiply
    51,193.70x = 70,653.03 × 28,534.76
  4. Step 4: Simplify right side
    51,193.70x = 2,016,067,254.32
  5. Step 5: Solve for x
    x = 2,016,067,254.32/51,193.70
  6. Step 6: Final answer
    x = 39,381.16

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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.