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Finding the Fourth Proportional to 25,281.60, 34,888.60 and 14,103.60

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Solution

The fourth proportional to 25,281.60, 34,888.60 and 14,103.60 is: 19,462.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,281.60 : 34,888.60 = 14,103.60 : x
  2. Step 2: Convert to fraction form
    25,281.60/34,888.60 = 14,103.60/x
  3. Step 3: Cross multiply
    25,281.60x = 34,888.60 × 14,103.60
  4. Step 4: Simplify right side
    25,281.60x = 492,054,858.96
  5. Step 5: Solve for x
    x = 492,054,858.96/25,281.60
  6. Step 6: Final answer
    x = 19,462.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.