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Finding the Fourth Proportional to 61,143.96, 84,362.64 and 35,296.16

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Solution

The fourth proportional to 61,143.96, 84,362.64 and 35,296.16 is: 48,699.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,143.96 : 84,362.64 = 35,296.16 : x
  2. Step 2: Convert to fraction form
    61,143.96/84,362.64 = 35,296.16/x
  3. Step 3: Cross multiply
    61,143.96x = 84,362.64 × 35,296.16
  4. Step 4: Simplify right side
    61,143.96x = 2,977,677,239.46
  5. Step 5: Solve for x
    x = 2,977,677,239.46/61,143.96
  6. Step 6: Final answer
    x = 48,699.45

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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.