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Finding the Fourth Proportional to 19,710.61, 27,200.55 and 10,758.11

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Solution

The fourth proportional to 19,710.61, 27,200.55 and 10,758.11 is: 14,846.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,710.61 : 27,200.55 = 10,758.11 : x
  2. Step 2: Convert to fraction form
    19,710.61/27,200.55 = 10,758.11/x
  3. Step 3: Cross multiply
    19,710.61x = 27,200.55 × 10,758.11
  4. Step 4: Simplify right side
    19,710.61x = 292,626,372.96
  5. Step 5: Solve for x
    x = 292,626,372.96/19,710.61
  6. Step 6: Final answer
    x = 14,846.14

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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.