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Finding the Fourth Proportional to 19,210.25, 26,510.15 and 10,378.25

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Solution

The fourth proportional to 19,210.25, 26,510.15 and 10,378.25 is: 14,321.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.25 : 26,510.15 = 10,378.25 : x
  2. Step 2: Convert to fraction form
    19,210.25/26,510.15 = 10,378.25/x
  3. Step 3: Cross multiply
    19,210.25x = 26,510.15 × 10,378.25
  4. Step 4: Simplify right side
    19,210.25x = 275,128,964.24
  5. Step 5: Solve for x
    x = 275,128,964.24/19,210.25
  6. Step 6: Final answer
    x = 14,321.99

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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.