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Finding the Fourth Proportional to 86,665.16, 130,017.16 and 27,502.76

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Solution

The fourth proportional to 86,665.16, 130,017.16 and 27,502.76 is: 41,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,665.16 : 130,017.16 = 27,502.76 : x
  2. Step 2: Convert to fraction form
    86,665.16/130,017.16 = 27,502.76/x
  3. Step 3: Cross multiply
    86,665.16x = 130,017.16 × 27,502.76
  4. Step 4: Simplify right side
    86,665.16x = 3,575,830,747.36
  5. Step 5: Solve for x
    x = 3,575,830,747.36/86,665.16
  6. Step 6: Final answer
    x = 41,260.30

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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.