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Finding the Fourth Proportional to 19,314, 26,655.86 and 10,930.52

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Solution

The fourth proportional to 19,314, 26,655.86 and 10,930.52 is: 15,085.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,314 : 26,655.86 = 10,930.52 : x
  2. Step 2: Convert to fraction form
    19,314/26,655.86 = 10,930.52/x
  3. Step 3: Cross multiply
    19,314x = 26,655.86 × 10,930.52
  4. Step 4: Simplify right side
    19,314x = 291,362,410.85
  5. Step 5: Solve for x
    x = 291,362,410.85/19,314
  6. Step 6: Final answer
    x = 15,085.56

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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.