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Finding the Fourth Proportional to 66,293.10, 91,482.75 and 36,079.02

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Solution

The fourth proportional to 66,293.10, 91,482.75 and 36,079.02 is: 49,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,293.10 : 91,482.75 = 36,079.02 : x
  2. Step 2: Convert to fraction form
    66,293.10/91,482.75 = 36,079.02/x
  3. Step 3: Cross multiply
    66,293.10x = 91,482.75 × 36,079.02
  4. Step 4: Simplify right side
    66,293.10x = 3,300,607,966.91
  5. Step 5: Solve for x
    x = 3,300,607,966.91/66,293.10
  6. Step 6: Final answer
    x = 49,788.11

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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.