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Finding the Fourth Proportional to 65,722.46, 90,602.59 and 46,826.78

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Solution

The fourth proportional to 65,722.46, 90,602.59 and 46,826.78 is: 64,553.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,722.46 : 90,602.59 = 46,826.78 : x
  2. Step 2: Convert to fraction form
    65,722.46/90,602.59 = 46,826.78/x
  3. Step 3: Cross multiply
    65,722.46x = 90,602.59 × 46,826.78
  4. Step 4: Simplify right side
    65,722.46x = 4,242,627,549.36
  5. Step 5: Solve for x
    x = 4,242,627,549.36/65,722.46
  6. Step 6: Final answer
    x = 64,553.69

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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.