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Finding the Fourth Proportional to 23,539.76, 32,485.02 and 12,929.30

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Solution

The fourth proportional to 23,539.76, 32,485.02 and 12,929.30 is: 17,842.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,539.76 : 32,485.02 = 12,929.30 : x
  2. Step 2: Convert to fraction form
    23,539.76/32,485.02 = 12,929.30/x
  3. Step 3: Cross multiply
    23,539.76x = 32,485.02 × 12,929.30
  4. Step 4: Simplify right side
    23,539.76x = 420,008,569.09
  5. Step 5: Solve for x
    x = 420,008,569.09/23,539.76
  6. Step 6: Final answer
    x = 17,842.52

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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.