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Finding the Fourth Proportional to 55,658.40, 83,487.60 and 32,330.40

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Solution

The fourth proportional to 55,658.40, 83,487.60 and 32,330.40 is: 48,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,658.40 : 83,487.60 = 32,330.40 : x
  2. Step 2: Convert to fraction form
    55,658.40/83,487.60 = 32,330.40/x
  3. Step 3: Cross multiply
    55,658.40x = 83,487.60 × 32,330.40
  4. Step 4: Simplify right side
    55,658.40x = 2,699,187,503.04
  5. Step 5: Solve for x
    x = 2,699,187,503.04/55,658.40
  6. Step 6: Final answer
    x = 48,495.60

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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.