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Finding the Fourth Proportional to 5,291.90, 7,925.22 and 2,946.08

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Solution

The fourth proportional to 5,291.90, 7,925.22 and 2,946.08 is: 4,412.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.90 : 7,925.22 = 2,946.08 : x
  2. Step 2: Convert to fraction form
    5,291.90/7,925.22 = 2,946.08/x
  3. Step 3: Cross multiply
    5,291.90x = 7,925.22 × 2,946.08
  4. Step 4: Simplify right side
    5,291.90x = 23,348,332.14
  5. Step 5: Solve for x
    x = 23,348,332.14/5,291.90
  6. Step 6: Final answer
    x = 4,412.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.