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Finding the Fourth Proportional to 66,698.16, 92,040.48 and 38,397.84

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Solution

The fourth proportional to 66,698.16, 92,040.48 and 38,397.84 is: 52,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,698.16 : 92,040.48 = 38,397.84 : x
  2. Step 2: Convert to fraction form
    66,698.16/92,040.48 = 38,397.84/x
  3. Step 3: Cross multiply
    66,698.16x = 92,040.48 × 38,397.84
  4. Step 4: Simplify right side
    66,698.16x = 3,534,155,624.56
  5. Step 5: Solve for x
    x = 3,534,155,624.56/66,698.16
  6. Step 6: Final answer
    x = 52,987.30

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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.