Home / 66,599.01-91,909.40-38,304.72

Finding the Fourth Proportional to 66,599.01, 91,909.40 and 38,304.72

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Solution

The fourth proportional to 66,599.01, 91,909.40 and 38,304.72 is: 52,862.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,599.01 : 91,909.40 = 38,304.72 : x
  2. Step 2: Convert to fraction form
    66,599.01/91,909.40 = 38,304.72/x
  3. Step 3: Cross multiply
    66,599.01x = 91,909.40 × 38,304.72
  4. Step 4: Simplify right side
    66,599.01x = 3,520,563,640.84
  5. Step 5: Solve for x
    x = 3,520,563,640.84/66,599.01
  6. Step 6: Final answer
    x = 52,862.10

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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.