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Finding the Fourth Proportional to 65,798.75, 90,798.84 and 37,117.58

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Solution

The fourth proportional to 65,798.75, 90,798.84 and 37,117.58 is: 51,220.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,798.75 : 90,798.84 = 37,117.58 : x
  2. Step 2: Convert to fraction form
    65,798.75/90,798.84 = 37,117.58/x
  3. Step 3: Cross multiply
    65,798.75x = 90,798.84 × 37,117.58
  4. Step 4: Simplify right side
    65,798.75x = 3,370,232,753.61
  5. Step 5: Solve for x
    x = 3,370,232,753.61/65,798.75
  6. Step 6: Final answer
    x = 51,220.31

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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.