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Finding the Fourth Proportional to 14,303.60, 19,738.08 and 8,015.28

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Solution

The fourth proportional to 14,303.60, 19,738.08 and 8,015.28 is: 11,060.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,303.60 : 19,738.08 = 8,015.28 : x
  2. Step 2: Convert to fraction form
    14,303.60/19,738.08 = 8,015.28/x
  3. Step 3: Cross multiply
    14,303.60x = 19,738.08 × 8,015.28
  4. Step 4: Simplify right side
    14,303.60x = 158,206,237.86
  5. Step 5: Solve for x
    x = 158,206,237.86/14,303.60
  6. Step 6: Final answer
    x = 11,060.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.