Home / 47,920.25-66,130.40-26,410.79

Finding the Fourth Proportional to 47,920.25, 66,130.40 and 26,410.79

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Solution

The fourth proportional to 47,920.25, 66,130.40 and 26,410.79 is: 36,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,920.25 : 66,130.40 = 26,410.79 : x
  2. Step 2: Convert to fraction form
    47,920.25/66,130.40 = 26,410.79/x
  3. Step 3: Cross multiply
    47,920.25x = 66,130.40 × 26,410.79
  4. Step 4: Simplify right side
    47,920.25x = 1,746,555,644.31
  5. Step 5: Solve for x
    x = 1,746,555,644.31/47,920.25
  6. Step 6: Final answer
    x = 36,447.13

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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.