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Finding the Fourth Proportional to 60,841, 91,278.78 and 19,289.08

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Solution

The fourth proportional to 60,841, 91,278.78 and 19,289.08 is: 28,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,841 : 91,278.78 = 19,289.08 : x
  2. Step 2: Convert to fraction form
    60,841/91,278.78 = 19,289.08/x
  3. Step 3: Cross multiply
    60,841x = 91,278.78 × 19,289.08
  4. Step 4: Simplify right side
    60,841x = 1,760,683,689.72
  5. Step 5: Solve for x
    x = 1,760,683,689.72/60,841
  6. Step 6: Final answer
    x = 28,939.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.