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Finding the Fourth Proportional to 86,200.48, 129,300.72 and 23,869.60

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Solution

The fourth proportional to 86,200.48, 129,300.72 and 23,869.60 is: 35,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,200.48 : 129,300.72 = 23,869.60 : x
  2. Step 2: Convert to fraction form
    86,200.48/129,300.72 = 23,869.60/x
  3. Step 3: Cross multiply
    86,200.48x = 129,300.72 × 23,869.60
  4. Step 4: Simplify right side
    86,200.48x = 3,086,356,466.11
  5. Step 5: Solve for x
    x = 3,086,356,466.11/86,200.48
  6. Step 6: Final answer
    x = 35,804.40

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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.