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Finding the Fourth Proportional to 32,698.90, 45,129.54 and 19,274.50

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Solution

The fourth proportional to 32,698.90, 45,129.54 and 19,274.50 is: 26,601.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,698.90 : 45,129.54 = 19,274.50 : x
  2. Step 2: Convert to fraction form
    32,698.90/45,129.54 = 19,274.50/x
  3. Step 3: Cross multiply
    32,698.90x = 45,129.54 × 19,274.50
  4. Step 4: Simplify right side
    32,698.90x = 869,849,318.73
  5. Step 5: Solve for x
    x = 869,849,318.73/32,698.90
  6. Step 6: Final answer
    x = 26,601.79

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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.