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Finding the Fourth Proportional to 14,026.50, 19,356.93 and 7,653.21

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Solution

The fourth proportional to 14,026.50, 19,356.93 and 7,653.21 is: 10,561.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,026.50 : 19,356.93 = 7,653.21 : x
  2. Step 2: Convert to fraction form
    14,026.50/19,356.93 = 7,653.21/x
  3. Step 3: Cross multiply
    14,026.50x = 19,356.93 × 7,653.21
  4. Step 4: Simplify right side
    14,026.50x = 148,142,650.25
  5. Step 5: Solve for x
    x = 148,142,650.25/14,026.50
  6. Step 6: Final answer
    x = 10,561.63

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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.