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Finding the Fourth Proportional to 29,419.84, 44,129.72 and 12,777.76

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Solution

The fourth proportional to 29,419.84, 44,129.72 and 12,777.76 is: 19,166.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,419.84 : 44,129.72 = 12,777.76 : x
  2. Step 2: Convert to fraction form
    29,419.84/44,129.72 = 12,777.76/x
  3. Step 3: Cross multiply
    29,419.84x = 44,129.72 × 12,777.76
  4. Step 4: Simplify right side
    29,419.84x = 563,878,971.03
  5. Step 5: Solve for x
    x = 563,878,971.03/29,419.84
  6. Step 6: Final answer
    x = 19,166.62

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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.