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Finding the Fourth Proportional to 86,993.16, 130,474.10 and 39,597.23

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Solution

The fourth proportional to 86,993.16, 130,474.10 and 39,597.23 is: 59,388.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,993.16 : 130,474.10 = 39,597.23 : x
  2. Step 2: Convert to fraction form
    86,993.16/130,474.10 = 39,597.23/x
  3. Step 3: Cross multiply
    86,993.16x = 130,474.10 × 39,597.23
  4. Step 4: Simplify right side
    86,993.16x = 5,166,413,060.65
  5. Step 5: Solve for x
    x = 5,166,413,060.65/86,993.16
  6. Step 6: Final answer
    x = 59,388.72

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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.