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Finding the Fourth Proportional to 17,970.63, 26,957.81 and 6,886.69

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Solution

The fourth proportional to 17,970.63, 26,957.81 and 6,886.69 is: 10,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,970.63 : 26,957.81 = 6,886.69 : x
  2. Step 2: Convert to fraction form
    17,970.63/26,957.81 = 6,886.69/x
  3. Step 3: Cross multiply
    17,970.63x = 26,957.81 × 6,886.69
  4. Step 4: Simplify right side
    17,970.63x = 185,650,030.37
  5. Step 5: Solve for x
    x = 185,650,030.37/17,970.63
  6. Step 6: Final answer
    x = 10,330.75

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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.