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Finding the Fourth Proportional to 64,684.79, 89,235.51 and 46,751.39

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Solution

The fourth proportional to 64,684.79, 89,235.51 and 46,751.39 is: 64,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,684.79 : 89,235.51 = 46,751.39 : x
  2. Step 2: Convert to fraction form
    64,684.79/89,235.51 = 46,751.39/x
  3. Step 3: Cross multiply
    64,684.79x = 89,235.51 × 46,751.39
  4. Step 4: Simplify right side
    64,684.79x = 4,171,884,129.86
  5. Step 5: Solve for x
    x = 4,171,884,129.86/64,684.79
  6. Step 6: Final answer
    x = 64,495.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.