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Finding the Fourth Proportional to 76,863.70, 106,041.30 and 46,637.92

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Solution

The fourth proportional to 76,863.70, 106,041.30 and 46,637.92 is: 64,341.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,863.70 : 106,041.30 = 46,637.92 : x
  2. Step 2: Convert to fraction form
    76,863.70/106,041.30 = 46,637.92/x
  3. Step 3: Cross multiply
    76,863.70x = 106,041.30 × 46,637.92
  4. Step 4: Simplify right side
    76,863.70x = 4,945,545,666.10
  5. Step 5: Solve for x
    x = 4,945,545,666.10/76,863.70
  6. Step 6: Final answer
    x = 64,341.76

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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.