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Finding the Fourth Proportional to 34,574.85, 47,712.85 and 19,261.40

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Solution

The fourth proportional to 34,574.85, 47,712.85 and 19,261.40 is: 26,580.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,574.85 : 47,712.85 = 19,261.40 : x
  2. Step 2: Convert to fraction form
    34,574.85/47,712.85 = 19,261.40/x
  3. Step 3: Cross multiply
    34,574.85x = 47,712.85 × 19,261.40
  4. Step 4: Simplify right side
    34,574.85x = 919,016,002.27
  5. Step 5: Solve for x
    x = 919,016,002.27/34,574.85
  6. Step 6: Final answer
    x = 26,580.48

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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.