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Finding the Fourth Proportional to 54,846.40, 82,269.60 and 47,070.40

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Solution

The fourth proportional to 54,846.40, 82,269.60 and 47,070.40 is: 70,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,846.40 : 82,269.60 = 47,070.40 : x
  2. Step 2: Convert to fraction form
    54,846.40/82,269.60 = 47,070.40/x
  3. Step 3: Cross multiply
    54,846.40x = 82,269.60 × 47,070.40
  4. Step 4: Simplify right side
    54,846.40x = 3,872,462,979.84
  5. Step 5: Solve for x
    x = 3,872,462,979.84/54,846.40
  6. Step 6: Final answer
    x = 70,605.60

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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.