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Finding the Fourth Proportional to 19,391.58, 26,758.08 and 10,894.14

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Solution

The fourth proportional to 19,391.58, 26,758.08 and 10,894.14 is: 15,032.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,391.58 : 26,758.08 = 10,894.14 : x
  2. Step 2: Convert to fraction form
    19,391.58/26,758.08 = 10,894.14/x
  3. Step 3: Cross multiply
    19,391.58x = 26,758.08 × 10,894.14
  4. Step 4: Simplify right side
    19,391.58x = 291,506,269.65
  5. Step 5: Solve for x
    x = 291,506,269.65/19,391.58
  6. Step 6: Final answer
    x = 15,032.62

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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.