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Finding the Fourth Proportional to 14,955.90, 22,408.65 and 11,823.90

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Solution

The fourth proportional to 14,955.90, 22,408.65 and 11,823.90 is: 17,715.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,955.90 : 22,408.65 = 11,823.90 : x
  2. Step 2: Convert to fraction form
    14,955.90/22,408.65 = 11,823.90/x
  3. Step 3: Cross multiply
    14,955.90x = 22,408.65 × 11,823.90
  4. Step 4: Simplify right side
    14,955.90x = 264,957,636.74
  5. Step 5: Solve for x
    x = 264,957,636.74/14,955.90
  6. Step 6: Final answer
    x = 17,715.93

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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.