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Finding the Fourth Proportional to 35,880.90, 53,815.14 and 10,914.90

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Solution

The fourth proportional to 35,880.90, 53,815.14 and 10,914.90 is: 16,370.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,880.90 : 53,815.14 = 10,914.90 : x
  2. Step 2: Convert to fraction form
    35,880.90/53,815.14 = 10,914.90/x
  3. Step 3: Cross multiply
    35,880.90x = 53,815.14 × 10,914.90
  4. Step 4: Simplify right side
    35,880.90x = 587,386,871.59
  5. Step 5: Solve for x
    x = 587,386,871.59/35,880.90
  6. Step 6: Final answer
    x = 16,370.46

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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.