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Finding the Fourth Proportional to 16,490.76, 24,726.89 and 7,124.93

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Solution

The fourth proportional to 16,490.76, 24,726.89 and 7,124.93 is: 10,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,490.76 : 24,726.89 = 7,124.93 : x
  2. Step 2: Convert to fraction form
    16,490.76/24,726.89 = 7,124.93/x
  3. Step 3: Cross multiply
    16,490.76x = 24,726.89 × 7,124.93
  4. Step 4: Simplify right side
    16,490.76x = 176,177,360.37
  5. Step 5: Solve for x
    x = 176,177,360.37/16,490.76
  6. Step 6: Final answer
    x = 10,683.40

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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.