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Finding the Fourth Proportional to 14,951.90, 22,423.80 and 4,421.90

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Solution

The fourth proportional to 14,951.90, 22,423.80 and 4,421.90 is: 6,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,951.90 : 22,423.80 = 4,421.90 : x
  2. Step 2: Convert to fraction form
    14,951.90/22,423.80 = 4,421.90/x
  3. Step 3: Cross multiply
    14,951.90x = 22,423.80 × 4,421.90
  4. Step 4: Simplify right side
    14,951.90x = 99,155,801.22
  5. Step 5: Solve for x
    x = 99,155,801.22/14,951.90
  6. Step 6: Final answer
    x = 6,631.65

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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.