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Finding the Fourth Proportional to 71,019.76, 98,017.90 and 45,554.84

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Solution

The fourth proportional to 71,019.76, 98,017.90 and 45,554.84 is: 62,872.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,019.76 : 98,017.90 = 45,554.84 : x
  2. Step 2: Convert to fraction form
    71,019.76/98,017.90 = 45,554.84/x
  3. Step 3: Cross multiply
    71,019.76x = 98,017.90 × 45,554.84
  4. Step 4: Simplify right side
    71,019.76x = 4,465,189,751.64
  5. Step 5: Solve for x
    x = 4,465,189,751.64/71,019.76
  6. Step 6: Final answer
    x = 62,872.50

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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.