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Finding the Fourth Proportional to 65,338.80, 90,038.52 and 46,422.96

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Solution

The fourth proportional to 65,338.80, 90,038.52 and 46,422.96 is: 63,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,338.80 : 90,038.52 = 46,422.96 : x
  2. Step 2: Convert to fraction form
    65,338.80/90,038.52 = 46,422.96/x
  3. Step 3: Cross multiply
    65,338.80x = 90,038.52 × 46,422.96
  4. Step 4: Simplify right side
    65,338.80x = 4,179,854,612.42
  5. Step 5: Solve for x
    x = 4,179,854,612.42/65,338.80
  6. Step 6: Final answer
    x = 63,972.01

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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.