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Finding the Fourth Proportional to 86,527.90, 129,795.90 and 27,368.20

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Solution

The fourth proportional to 86,527.90, 129,795.90 and 27,368.20 is: 41,053.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,527.90 : 129,795.90 = 27,368.20 : x
  2. Step 2: Convert to fraction form
    86,527.90/129,795.90 = 27,368.20/x
  3. Step 3: Cross multiply
    86,527.90x = 129,795.90 × 27,368.20
  4. Step 4: Simplify right side
    86,527.90x = 3,552,280,150.38
  5. Step 5: Solve for x
    x = 3,552,280,150.38/86,527.90
  6. Step 6: Final answer
    x = 41,053.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.