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Finding the Fourth Proportional to 48,409.60, 65,145.60 and 48,409.60

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Solution

The fourth proportional to 48,409.60, 65,145.60 and 48,409.60 is: 65,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,409.60 : 65,145.60 = 48,409.60 : x
  2. Step 2: Convert to fraction form
    48,409.60/65,145.60 = 48,409.60/x
  3. Step 3: Cross multiply
    48,409.60x = 65,145.60 × 48,409.60
  4. Step 4: Simplify right side
    48,409.60x = 3,153,672,437.76
  5. Step 5: Solve for x
    x = 3,153,672,437.76/48,409.60
  6. Step 6: Final answer
    x = 65,145.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.