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Finding the Fourth Proportional to 7,671.60, 11,483.10 and 6,019.20

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Solution

The fourth proportional to 7,671.60, 11,483.10 and 6,019.20 is: 9,009.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.60 : 11,483.10 = 6,019.20 : x
  2. Step 2: Convert to fraction form
    7,671.60/11,483.10 = 6,019.20/x
  3. Step 3: Cross multiply
    7,671.60x = 11,483.10 × 6,019.20
  4. Step 4: Simplify right side
    7,671.60x = 69,119,075.52
  5. Step 5: Solve for x
    x = 69,119,075.52/7,671.60
  6. Step 6: Final answer
    x = 9,009.73

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Half scale
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Double scale
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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.