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Finding the Fourth Proportional to 86,681.80, 130,021.98 and 23,501.80

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Solution

The fourth proportional to 86,681.80, 130,021.98 and 23,501.80 is: 35,252.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,681.80 : 130,021.98 = 23,501.80 : x
  2. Step 2: Convert to fraction form
    86,681.80/130,021.98 = 23,501.80/x
  3. Step 3: Cross multiply
    86,681.80x = 130,021.98 × 23,501.80
  4. Step 4: Simplify right side
    86,681.80x = 3,055,750,569.56
  5. Step 5: Solve for x
    x = 3,055,750,569.56/86,681.80
  6. Step 6: Final answer
    x = 35,252.50

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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.