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Finding the Fourth Proportional to 12,703.33, 17,521.59 and 7,925.68

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Solution

The fourth proportional to 12,703.33, 17,521.59 and 7,925.68 is: 10,931.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.33 : 17,521.59 = 7,925.68 : x
  2. Step 2: Convert to fraction form
    12,703.33/17,521.59 = 7,925.68/x
  3. Step 3: Cross multiply
    12,703.33x = 17,521.59 × 7,925.68
  4. Step 4: Simplify right side
    12,703.33x = 138,870,515.43
  5. Step 5: Solve for x
    x = 138,870,515.43/12,703.33
  6. Step 6: Final answer
    x = 10,931.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.