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Finding the Fourth Proportional to 15,858.60, 23,788.10 and 7,539.48

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Solution

The fourth proportional to 15,858.60, 23,788.10 and 7,539.48 is: 11,309.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,858.60 : 23,788.10 = 7,539.48 : x
  2. Step 2: Convert to fraction form
    15,858.60/23,788.10 = 7,539.48/x
  3. Step 3: Cross multiply
    15,858.60x = 23,788.10 × 7,539.48
  4. Step 4: Simplify right side
    15,858.60x = 179,349,904.19
  5. Step 5: Solve for x
    x = 179,349,904.19/15,858.60
  6. Step 6: Final answer
    x = 11,309.32

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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.