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Finding the Fourth Proportional to 4,307.16, 5,946 and 2,917.20

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Solution

The fourth proportional to 4,307.16, 5,946 and 2,917.20 is: 4,027.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,307.16 : 5,946 = 2,917.20 : x
  2. Step 2: Convert to fraction form
    4,307.16/5,946 = 2,917.20/x
  3. Step 3: Cross multiply
    4,307.16x = 5,946 × 2,917.20
  4. Step 4: Simplify right side
    4,307.16x = 17,345,671.20
  5. Step 5: Solve for x
    x = 17,345,671.20/4,307.16
  6. Step 6: Final answer
    x = 4,027.17

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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.