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Finding the Fourth Proportional to 2,918.16, 4,023 and 2,296.08

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Solution

The fourth proportional to 2,918.16, 4,023 and 2,296.08 is: 3,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.16 : 4,023 = 2,296.08 : x
  2. Step 2: Convert to fraction form
    2,918.16/4,023 = 2,296.08/x
  3. Step 3: Cross multiply
    2,918.16x = 4,023 × 2,296.08
  4. Step 4: Simplify right side
    2,918.16x = 9,237,129.84
  5. Step 5: Solve for x
    x = 9,237,129.84/2,918.16
  6. Step 6: Final answer
    x = 3,165.40

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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.