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Finding the Fourth Proportional to 61,015.87, 84,208.98 and 37,156.51

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Solution

The fourth proportional to 61,015.87, 84,208.98 and 37,156.51 is: 51,280.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,015.87 : 84,208.98 = 37,156.51 : x
  2. Step 2: Convert to fraction form
    61,015.87/84,208.98 = 37,156.51/x
  3. Step 3: Cross multiply
    61,015.87x = 84,208.98 × 37,156.51
  4. Step 4: Simplify right side
    61,015.87x = 3,128,911,807.46
  5. Step 5: Solve for x
    x = 3,128,911,807.46/61,015.87
  6. Step 6: Final answer
    x = 51,280.29

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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.