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Finding the Fourth Proportional to 43,246.80, 64,886.40 and 16,970.40

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Solution

The fourth proportional to 43,246.80, 64,886.40 and 16,970.40 is: 25,461.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,246.80 : 64,886.40 = 16,970.40 : x
  2. Step 2: Convert to fraction form
    43,246.80/64,886.40 = 16,970.40/x
  3. Step 3: Cross multiply
    43,246.80x = 64,886.40 × 16,970.40
  4. Step 4: Simplify right side
    43,246.80x = 1,101,148,162.56
  5. Step 5: Solve for x
    x = 1,101,148,162.56/43,246.80
  6. Step 6: Final answer
    x = 25,461.96

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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.