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Finding the Fourth Proportional to 14,605.60, 21,890.40 and 9,925.60

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Solution

The fourth proportional to 14,605.60, 21,890.40 and 9,925.60 is: 14,876.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.60 : 21,890.40 = 9,925.60 : x
  2. Step 2: Convert to fraction form
    14,605.60/21,890.40 = 9,925.60/x
  3. Step 3: Cross multiply
    14,605.60x = 21,890.40 × 9,925.60
  4. Step 4: Simplify right side
    14,605.60x = 217,275,354.24
  5. Step 5: Solve for x
    x = 217,275,354.24/14,605.60
  6. Step 6: Final answer
    x = 14,876.17

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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.