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Finding the Fourth Proportional to 10,672.74, 15,984.48 and 10,303.68

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Solution

The fourth proportional to 10,672.74, 15,984.48 and 10,303.68 is: 15,431.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,672.74 : 15,984.48 = 10,303.68 : x
  2. Step 2: Convert to fraction form
    10,672.74/15,984.48 = 10,303.68/x
  3. Step 3: Cross multiply
    10,672.74x = 15,984.48 × 10,303.68
  4. Step 4: Simplify right side
    10,672.74x = 164,698,966.89
  5. Step 5: Solve for x
    x = 164,698,966.89/10,672.74
  6. Step 6: Final answer
    x = 15,431.74

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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.