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Finding the Fourth Proportional to 14,362.51, 19,812.17 and 8,618.48

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Solution

The fourth proportional to 14,362.51, 19,812.17 and 8,618.48 is: 11,888.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,362.51 : 19,812.17 = 8,618.48 : x
  2. Step 2: Convert to fraction form
    14,362.51/19,812.17 = 8,618.48/x
  3. Step 3: Cross multiply
    14,362.51x = 19,812.17 × 8,618.48
  4. Step 4: Simplify right side
    14,362.51x = 170,750,762.92
  5. Step 5: Solve for x
    x = 170,750,762.92/14,362.51
  6. Step 6: Final answer
    x = 11,888.65

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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.