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Finding the Fourth Proportional to 15,354.56, 21,193.40 and 10,056.56

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Solution

The fourth proportional to 15,354.56, 21,193.40 and 10,056.56 is: 13,880.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,354.56 : 21,193.40 = 10,056.56 : x
  2. Step 2: Convert to fraction form
    15,354.56/21,193.40 = 10,056.56/x
  3. Step 3: Cross multiply
    15,354.56x = 21,193.40 × 10,056.56
  4. Step 4: Simplify right side
    15,354.56x = 213,132,561.31
  5. Step 5: Solve for x
    x = 213,132,561.31/15,354.56
  6. Step 6: Final answer
    x = 13,880.73

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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.