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Finding the Fourth Proportional to 19,064.50, 26,309.01 and 11,612.50

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Solution

The fourth proportional to 19,064.50, 26,309.01 and 11,612.50 is: 16,025.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,064.50 : 26,309.01 = 11,612.50 : x
  2. Step 2: Convert to fraction form
    19,064.50/26,309.01 = 11,612.50/x
  3. Step 3: Cross multiply
    19,064.50x = 26,309.01 × 11,612.50
  4. Step 4: Simplify right side
    19,064.50x = 305,513,378.63
  5. Step 5: Solve for x
    x = 305,513,378.63/19,064.50
  6. Step 6: Final answer
    x = 16,025.25

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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.