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Finding the Fourth Proportional to 55,038.06, 75,987.90 and 37,839.06

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Solution

The fourth proportional to 55,038.06, 75,987.90 and 37,839.06 is: 52,242.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,038.06 : 75,987.90 = 37,839.06 : x
  2. Step 2: Convert to fraction form
    55,038.06/75,987.90 = 37,839.06/x
  3. Step 3: Cross multiply
    55,038.06x = 75,987.90 × 37,839.06
  4. Step 4: Simplify right side
    55,038.06x = 2,875,310,707.37
  5. Step 5: Solve for x
    x = 2,875,310,707.37/55,038.06
  6. Step 6: Final answer
    x = 52,242.22

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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.