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Finding the Fourth Proportional to 91,752.12, 137,595.16 and 31,764.32

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Solution

The fourth proportional to 91,752.12, 137,595.16 and 31,764.32 is: 47,635.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,752.12 : 137,595.16 = 31,764.32 : x
  2. Step 2: Convert to fraction form
    91,752.12/137,595.16 = 31,764.32/x
  3. Step 3: Cross multiply
    91,752.12x = 137,595.16 × 31,764.32
  4. Step 4: Simplify right side
    91,752.12x = 4,370,616,692.69
  5. Step 5: Solve for x
    x = 4,370,616,692.69/91,752.12
  6. Step 6: Final answer
    x = 47,635.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.