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Finding the Fourth Proportional to 10,808.29, 14,918.27 and 7,041.79

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Solution

The fourth proportional to 10,808.29, 14,918.27 and 7,041.79 is: 9,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,808.29 : 14,918.27 = 7,041.79 : x
  2. Step 2: Convert to fraction form
    10,808.29/14,918.27 = 7,041.79/x
  3. Step 3: Cross multiply
    10,808.29x = 14,918.27 × 7,041.79
  4. Step 4: Simplify right side
    10,808.29x = 105,051,324.50
  5. Step 5: Solve for x
    x = 105,051,324.50/10,808.29
  6. Step 6: Final answer
    x = 9,719.51

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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.