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Finding the Fourth Proportional to 5,430.76, 7,494.44 and 2,946.76

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Solution

The fourth proportional to 5,430.76, 7,494.44 and 2,946.76 is: 4,066.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.76 : 7,494.44 = 2,946.76 : x
  2. Step 2: Convert to fraction form
    5,430.76/7,494.44 = 2,946.76/x
  3. Step 3: Cross multiply
    5,430.76x = 7,494.44 × 2,946.76
  4. Step 4: Simplify right side
    5,430.76x = 22,084,316.01
  5. Step 5: Solve for x
    x = 22,084,316.01/5,430.76
  6. Step 6: Final answer
    x = 4,066.52

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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.