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Finding the Fourth Proportional to 5,550.01, 7,665.48 and 5,018.77

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Solution

The fourth proportional to 5,550.01, 7,665.48 and 5,018.77 is: 6,931.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,550.01 : 7,665.48 = 5,018.77 : x
  2. Step 2: Convert to fraction form
    5,550.01/7,665.48 = 5,018.77/x
  3. Step 3: Cross multiply
    5,550.01x = 7,665.48 × 5,018.77
  4. Step 4: Simplify right side
    5,550.01x = 38,471,281.06
  5. Step 5: Solve for x
    x = 38,471,281.06/5,550.01
  6. Step 6: Final answer
    x = 6,931.75

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.