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Finding the Fourth Proportional to 14,888.80, 20,524.08 and 9,290.08

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Solution

The fourth proportional to 14,888.80, 20,524.08 and 9,290.08 is: 12,806.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,888.80 : 20,524.08 = 9,290.08 : x
  2. Step 2: Convert to fraction form
    14,888.80/20,524.08 = 9,290.08/x
  3. Step 3: Cross multiply
    14,888.80x = 20,524.08 × 9,290.08
  4. Step 4: Simplify right side
    14,888.80x = 190,670,345.13
  5. Step 5: Solve for x
    x = 190,670,345.13/14,888.80
  6. Step 6: Final answer
    x = 12,806.29

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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.