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Finding the Fourth Proportional to 55,497.60, 83,246.40 and 47,894.40

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Solution

The fourth proportional to 55,497.60, 83,246.40 and 47,894.40 is: 71,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,497.60 : 83,246.40 = 47,894.40 : x
  2. Step 2: Convert to fraction form
    55,497.60/83,246.40 = 47,894.40/x
  3. Step 3: Cross multiply
    55,497.60x = 83,246.40 × 47,894.40
  4. Step 4: Simplify right side
    55,497.60x = 3,987,036,380.16
  5. Step 5: Solve for x
    x = 3,987,036,380.16/55,497.60
  6. Step 6: Final answer
    x = 71,841.60

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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.