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Finding the Fourth Proportional to 64,762.38, 89,410.77 and 46,838.70

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Solution

The fourth proportional to 64,762.38, 89,410.77 and 46,838.70 is: 64,665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,762.38 : 89,410.77 = 46,838.70 : x
  2. Step 2: Convert to fraction form
    64,762.38/89,410.77 = 46,838.70/x
  3. Step 3: Cross multiply
    64,762.38x = 89,410.77 × 46,838.70
  4. Step 4: Simplify right side
    64,762.38x = 4,187,884,232.80
  5. Step 5: Solve for x
    x = 4,187,884,232.80/64,762.38
  6. Step 6: Final answer
    x = 64,665.38

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1.5x scale

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.