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Finding the Fourth Proportional to 14,135.51, 19,507.51 and 9,363.75

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Solution

The fourth proportional to 14,135.51, 19,507.51 and 9,363.75 is: 12,922.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.51 : 19,507.51 = 9,363.75 : x
  2. Step 2: Convert to fraction form
    14,135.51/19,507.51 = 9,363.75/x
  3. Step 3: Cross multiply
    14,135.51x = 19,507.51 × 9,363.75
  4. Step 4: Simplify right side
    14,135.51x = 182,663,468.71
  5. Step 5: Solve for x
    x = 182,663,468.71/14,135.51
  6. Step 6: Final answer
    x = 12,922.31

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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.