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Finding the Fourth Proportional to 17,970.80, 26,957.40 and 6,124.40

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Solution

The fourth proportional to 17,970.80, 26,957.40 and 6,124.40 is: 9,187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,970.80 : 26,957.40 = 6,124.40 : x
  2. Step 2: Convert to fraction form
    17,970.80/26,957.40 = 6,124.40/x
  3. Step 3: Cross multiply
    17,970.80x = 26,957.40 × 6,124.40
  4. Step 4: Simplify right side
    17,970.80x = 165,097,900.56
  5. Step 5: Solve for x
    x = 165,097,900.56/17,970.80
  6. Step 6: Final answer
    x = 9,187.01

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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.