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Finding the Fourth Proportional to 14,484.76, 21,726.42 and 7,923.76

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Solution

The fourth proportional to 14,484.76, 21,726.42 and 7,923.76 is: 11,885.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,484.76 : 21,726.42 = 7,923.76 : x
  2. Step 2: Convert to fraction form
    14,484.76/21,726.42 = 7,923.76/x
  3. Step 3: Cross multiply
    14,484.76x = 21,726.42 × 7,923.76
  4. Step 4: Simplify right side
    14,484.76x = 172,154,937.74
  5. Step 5: Solve for x
    x = 172,154,937.74/14,484.76
  6. Step 6: Final answer
    x = 11,885.25

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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.