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Finding the Fourth Proportional to 7,557, 10,428.66 and 4,413.21

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Solution

The fourth proportional to 7,557, 10,428.66 and 4,413.21 is: 6,090.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,557 : 10,428.66 = 4,413.21 : x
  2. Step 2: Convert to fraction form
    7,557/10,428.66 = 4,413.21/x
  3. Step 3: Cross multiply
    7,557x = 10,428.66 × 4,413.21
  4. Step 4: Simplify right side
    7,557x = 46,023,866.60
  5. Step 5: Solve for x
    x = 46,023,866.60/7,557
  6. Step 6: Final answer
    x = 6,090.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.