Home / 51,065.10-70,468.82-28,403.60

Finding the Fourth Proportional to 51,065.10, 70,468.82 and 28,403.60

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Solution

The fourth proportional to 51,065.10, 70,468.82 and 28,403.60 is: 39,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,065.10 : 70,468.82 = 28,403.60 : x
  2. Step 2: Convert to fraction form
    51,065.10/70,468.82 = 28,403.60/x
  3. Step 3: Cross multiply
    51,065.10x = 70,468.82 × 28,403.60
  4. Step 4: Simplify right side
    51,065.10x = 2,001,568,209.91
  5. Step 5: Solve for x
    x = 2,001,568,209.91/51,065.10
  6. Step 6: Final answer
    x = 39,196.40

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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.