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Finding the Fourth Proportional to 7,563.62, 10,436.27 and 4,419.20

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Solution

The fourth proportional to 7,563.62, 10,436.27 and 4,419.20 is: 6,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,563.62 : 10,436.27 = 4,419.20 : x
  2. Step 2: Convert to fraction form
    7,563.62/10,436.27 = 4,419.20/x
  3. Step 3: Cross multiply
    7,563.62x = 10,436.27 × 4,419.20
  4. Step 4: Simplify right side
    7,563.62x = 46,119,968.38
  5. Step 5: Solve for x
    x = 46,119,968.38/7,563.62
  6. Step 6: Final answer
    x = 6,097.60

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Half scale
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Double scale
Find fourth proportional to 7,564.62, 10,437.64 and 4,420.20
Similar ratio
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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.