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Finding the Fourth Proportional to 30,615.84, 45,928.08 and 10,888.56

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Solution

The fourth proportional to 30,615.84, 45,928.08 and 10,888.56 is: 16,334.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,615.84 : 45,928.08 = 10,888.56 : x
  2. Step 2: Convert to fraction form
    30,615.84/45,928.08 = 10,888.56/x
  3. Step 3: Cross multiply
    30,615.84x = 45,928.08 × 10,888.56
  4. Step 4: Simplify right side
    30,615.84x = 500,090,654.76
  5. Step 5: Solve for x
    x = 500,090,654.76/30,615.84
  6. Step 6: Final answer
    x = 16,334.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.