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Finding the Fourth Proportional to 64,365.60, 96,434.88 and 56,379.12

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Solution

The fourth proportional to 64,365.60, 96,434.88 and 56,379.12 is: 84,469.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,365.60 : 96,434.88 = 56,379.12 : x
  2. Step 2: Convert to fraction form
    64,365.60/96,434.88 = 56,379.12/x
  3. Step 3: Cross multiply
    64,365.60x = 96,434.88 × 56,379.12
  4. Step 4: Simplify right side
    64,365.60x = 5,436,913,671.71
  5. Step 5: Solve for x
    x = 5,436,913,671.71/64,365.60
  6. Step 6: Final answer
    x = 84,469.25

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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.