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Finding the Fourth Proportional to 34,763.32, 47,971.47 and 19,655.11

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Solution

The fourth proportional to 34,763.32, 47,971.47 and 19,655.11 is: 27,122.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,763.32 : 47,971.47 = 19,655.11 : x
  2. Step 2: Convert to fraction form
    34,763.32/47,971.47 = 19,655.11/x
  3. Step 3: Cross multiply
    34,763.32x = 47,971.47 × 19,655.11
  4. Step 4: Simplify right side
    34,763.32x = 942,884,519.71
  5. Step 5: Solve for x
    x = 942,884,519.71/34,763.32
  6. Step 6: Final answer
    x = 27,122.97

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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.