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Finding the Fourth Proportional to 54,329.40, 81,494.10 and 47,417.40

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Solution

The fourth proportional to 54,329.40, 81,494.10 and 47,417.40 is: 71,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,329.40 : 81,494.10 = 47,417.40 : x
  2. Step 2: Convert to fraction form
    54,329.40/81,494.10 = 47,417.40/x
  3. Step 3: Cross multiply
    54,329.40x = 81,494.10 × 47,417.40
  4. Step 4: Simplify right side
    54,329.40x = 3,864,238,337.34
  5. Step 5: Solve for x
    x = 3,864,238,337.34/54,329.40
  6. Step 6: Final answer
    x = 71,126.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.