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Finding the Fourth Proportional to 4,456.64, 6,684.96 and 1,535

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Solution

The fourth proportional to 4,456.64, 6,684.96 and 1,535 is: 2,302.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,456.64 : 6,684.96 = 1,535 : x
  2. Step 2: Convert to fraction form
    4,456.64/6,684.96 = 1,535/x
  3. Step 3: Cross multiply
    4,456.64x = 6,684.96 × 1,535
  4. Step 4: Simplify right side
    4,456.64x = 10,261,413.60
  5. Step 5: Solve for x
    x = 10,261,413.60/4,456.64
  6. Step 6: Final answer
    x = 2,302.50

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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.