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Finding the Fourth Proportional to 17,386.40, 26,060.40 and 9,600.80

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Solution

The fourth proportional to 17,386.40, 26,060.40 and 9,600.80 is: 14,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,386.40 : 26,060.40 = 9,600.80 : x
  2. Step 2: Convert to fraction form
    17,386.40/26,060.40 = 9,600.80/x
  3. Step 3: Cross multiply
    17,386.40x = 26,060.40 × 9,600.80
  4. Step 4: Simplify right side
    17,386.40x = 250,200,688.32
  5. Step 5: Solve for x
    x = 250,200,688.32/17,386.40
  6. Step 6: Final answer
    x = 14,390.60

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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.