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Finding the Fourth Proportional to 28,444.76, 42,672.10 and 9,726.67

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Solution

The fourth proportional to 28,444.76, 42,672.10 and 9,726.67 is: 14,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.76 : 42,672.10 = 9,726.67 : x
  2. Step 2: Convert to fraction form
    28,444.76/42,672.10 = 9,726.67/x
  3. Step 3: Cross multiply
    28,444.76x = 42,672.10 × 9,726.67
  4. Step 4: Simplify right side
    28,444.76x = 415,057,434.91
  5. Step 5: Solve for x
    x = 415,057,434.91/28,444.76
  6. Step 6: Final answer
    x = 14,591.70

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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.