Home / 47,640.12-65,742.21-26,130.15

Finding the Fourth Proportional to 47,640.12, 65,742.21 and 26,130.15

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Solution

The fourth proportional to 47,640.12, 65,742.21 and 26,130.15 is: 36,058.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,640.12 : 65,742.21 = 26,130.15 : x
  2. Step 2: Convert to fraction form
    47,640.12/65,742.21 = 26,130.15/x
  3. Step 3: Cross multiply
    47,640.12x = 65,742.21 × 26,130.15
  4. Step 4: Simplify right side
    47,640.12x = 1,717,853,808.63
  5. Step 5: Solve for x
    x = 1,717,853,808.63/47,640.12
  6. Step 6: Final answer
    x = 36,058.97

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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.