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Finding the Fourth Proportional to 55,557, 76,632.66 and 37,438.92

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Solution

The fourth proportional to 55,557, 76,632.66 and 37,438.92 is: 51,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,557 : 76,632.66 = 37,438.92 : x
  2. Step 2: Convert to fraction form
    55,557/76,632.66 = 37,438.92/x
  3. Step 3: Cross multiply
    55,557x = 76,632.66 × 37,438.92
  4. Step 4: Simplify right side
    55,557x = 2,869,044,027.13
  5. Step 5: Solve for x
    x = 2,869,044,027.13/55,557
  6. Step 6: Final answer
    x = 51,641.45

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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.