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Finding the Fourth Proportional to 61,140.93, 84,389.49 and 37,280.76

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Solution

The fourth proportional to 61,140.93, 84,389.49 and 37,280.76 is: 51,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,140.93 : 84,389.49 = 37,280.76 : x
  2. Step 2: Convert to fraction form
    61,140.93/84,389.49 = 37,280.76/x
  3. Step 3: Cross multiply
    61,140.93x = 84,389.49 × 37,280.76
  4. Step 4: Simplify right side
    61,140.93x = 3,146,104,323.21
  5. Step 5: Solve for x
    x = 3,146,104,323.21/61,140.93
  6. Step 6: Final answer
    x = 51,456.60

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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.