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Finding the Fourth Proportional to 61,798.74, 92,706.99 and 19,107.50

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Solution

The fourth proportional to 61,798.74, 92,706.99 and 19,107.50 is: 28,663.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,798.74 : 92,706.99 = 19,107.50 : x
  2. Step 2: Convert to fraction form
    61,798.74/92,706.99 = 19,107.50/x
  3. Step 3: Cross multiply
    61,798.74x = 92,706.99 × 19,107.50
  4. Step 4: Simplify right side
    61,798.74x = 1,771,398,563.90
  5. Step 5: Solve for x
    x = 1,771,398,563.90/61,798.74
  6. Step 6: Final answer
    x = 28,663.99

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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.