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Finding the Fourth Proportional to 91,655.32, 126,473.10 and 55,832.32

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Solution

The fourth proportional to 91,655.32, 126,473.10 and 55,832.32 is: 77,041.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,655.32 : 126,473.10 = 55,832.32 : x
  2. Step 2: Convert to fraction form
    91,655.32/126,473.10 = 55,832.32/x
  3. Step 3: Cross multiply
    91,655.32x = 126,473.10 × 55,832.32
  4. Step 4: Simplify right side
    91,655.32x = 7,061,286,590.59
  5. Step 5: Solve for x
    x = 7,061,286,590.59/91,655.32
  6. Step 6: Final answer
    x = 77,041.75

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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.