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Finding the Fourth Proportional to 34,364.88, 47,421.90 and 19,257.48

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Solution

The fourth proportional to 34,364.88, 47,421.90 and 19,257.48 is: 26,574.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,364.88 : 47,421.90 = 19,257.48 : x
  2. Step 2: Convert to fraction form
    34,364.88/47,421.90 = 19,257.48/x
  3. Step 3: Cross multiply
    34,364.88x = 47,421.90 × 19,257.48
  4. Step 4: Simplify right side
    34,364.88x = 913,226,290.81
  5. Step 5: Solve for x
    x = 913,226,290.81/34,364.88
  6. Step 6: Final answer
    x = 26,574.41

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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.