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Finding the Fourth Proportional to 23,486.76, 32,410.94 and 12,875.76

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Solution

The fourth proportional to 23,486.76, 32,410.94 and 12,875.76 is: 17,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,486.76 : 32,410.94 = 12,875.76 : x
  2. Step 2: Convert to fraction form
    23,486.76/32,410.94 = 12,875.76/x
  3. Step 3: Cross multiply
    23,486.76x = 32,410.94 × 12,875.76
  4. Step 4: Simplify right side
    23,486.76x = 417,315,420.44
  5. Step 5: Solve for x
    x = 417,315,420.44/23,486.76
  6. Step 6: Final answer
    x = 17,768.11

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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.