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Finding the Fourth Proportional to 59,280.80, 81,814.56 and 34,135.20

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Solution

The fourth proportional to 59,280.80, 81,814.56 and 34,135.20 is: 47,110.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,280.80 : 81,814.56 = 34,135.20 : x
  2. Step 2: Convert to fraction form
    59,280.80/81,814.56 = 34,135.20/x
  3. Step 3: Cross multiply
    59,280.80x = 81,814.56 × 34,135.20
  4. Step 4: Simplify right side
    59,280.80x = 2,792,756,368.51
  5. Step 5: Solve for x
    x = 2,792,756,368.51/59,280.80
  6. Step 6: Final answer
    x = 47,110.64

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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.