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Finding the Fourth Proportional to 15,663.60, 23,500.80 and 6,904.80

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Solution

The fourth proportional to 15,663.60, 23,500.80 and 6,904.80 is: 10,359.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,663.60 : 23,500.80 = 6,904.80 : x
  2. Step 2: Convert to fraction form
    15,663.60/23,500.80 = 6,904.80/x
  3. Step 3: Cross multiply
    15,663.60x = 23,500.80 × 6,904.80
  4. Step 4: Simplify right side
    15,663.60x = 162,268,323.84
  5. Step 5: Solve for x
    x = 162,268,323.84/15,663.60
  6. Step 6: Final answer
    x = 10,359.58

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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.