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Finding the Fourth Proportional to 32,378.99, 48,590.37 and 12,655.08

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Solution

The fourth proportional to 32,378.99, 48,590.37 and 12,655.08 is: 18,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,378.99 : 48,590.37 = 12,655.08 : x
  2. Step 2: Convert to fraction form
    32,378.99/48,590.37 = 12,655.08/x
  3. Step 3: Cross multiply
    32,378.99x = 48,590.37 × 12,655.08
  4. Step 4: Simplify right side
    32,378.99x = 614,915,019.58
  5. Step 5: Solve for x
    x = 614,915,019.58/32,378.99
  6. Step 6: Final answer
    x = 18,991.18

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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.