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Finding the Fourth Proportional to 64,038.78, 88,376.94 and 37,189.71

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Solution

The fourth proportional to 64,038.78, 88,376.94 and 37,189.71 is: 51,323.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,038.78 : 88,376.94 = 37,189.71 : x
  2. Step 2: Convert to fraction form
    64,038.78/88,376.94 = 37,189.71/x
  3. Step 3: Cross multiply
    64,038.78x = 88,376.94 × 37,189.71
  4. Step 4: Simplify right side
    64,038.78x = 3,286,712,769.29
  5. Step 5: Solve for x
    x = 3,286,712,769.29/64,038.78
  6. Step 6: Final answer
    x = 51,323.79

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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.