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Finding the Fourth Proportional to 57,434.40, 86,151.60 and 56,462.40

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Solution

The fourth proportional to 57,434.40, 86,151.60 and 56,462.40 is: 84,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,434.40 : 86,151.60 = 56,462.40 : x
  2. Step 2: Convert to fraction form
    57,434.40/86,151.60 = 56,462.40/x
  3. Step 3: Cross multiply
    57,434.40x = 86,151.60 × 56,462.40
  4. Step 4: Simplify right side
    57,434.40x = 4,864,326,099.84
  5. Step 5: Solve for x
    x = 4,864,326,099.84/57,434.40
  6. Step 6: Final answer
    x = 84,693.60

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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.