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Finding the Fourth Proportional to 8,066.51, 11,129.83 and 4,707.40

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Solution

The fourth proportional to 8,066.51, 11,129.83 and 4,707.40 is: 6,495.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,066.51 : 11,129.83 = 4,707.40 : x
  2. Step 2: Convert to fraction form
    8,066.51/11,129.83 = 4,707.40/x
  3. Step 3: Cross multiply
    8,066.51x = 11,129.83 × 4,707.40
  4. Step 4: Simplify right side
    8,066.51x = 52,392,561.74
  5. Step 5: Solve for x
    x = 52,392,561.74/8,066.51
  6. Step 6: Final answer
    x = 6,495.07

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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.