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Finding the Fourth Proportional to 61,782.49, 91,878.94 and 59,814.19

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Solution

The fourth proportional to 61,782.49, 91,878.94 and 59,814.19 is: 88,951.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,782.49 : 91,878.94 = 59,814.19 : x
  2. Step 2: Convert to fraction form
    61,782.49/91,878.94 = 59,814.19/x
  3. Step 3: Cross multiply
    61,782.49x = 91,878.94 × 59,814.19
  4. Step 4: Simplify right side
    61,782.49x = 5,495,664,075.09
  5. Step 5: Solve for x
    x = 5,495,664,075.09/61,782.49
  6. Step 6: Final answer
    x = 88,951.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.