Home / 51,009.10-70,390.29-28,349.68

Finding the Fourth Proportional to 51,009.10, 70,390.29 and 28,349.68

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Solution

The fourth proportional to 51,009.10, 70,390.29 and 28,349.68 is: 39,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,009.10 : 70,390.29 = 28,349.68 : x
  2. Step 2: Convert to fraction form
    51,009.10/70,390.29 = 28,349.68/x
  3. Step 3: Cross multiply
    51,009.10x = 70,390.29 × 28,349.68
  4. Step 4: Simplify right side
    51,009.10x = 1,995,542,196.61
  5. Step 5: Solve for x
    x = 1,995,542,196.61/51,009.10
  6. Step 6: Final answer
    x = 39,121.30

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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.