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Finding the Fourth Proportional to 59,906.40, 89,859.60 and 28,802.40

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Solution

The fourth proportional to 59,906.40, 89,859.60 and 28,802.40 is: 43,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,906.40 : 89,859.60 = 28,802.40 : x
  2. Step 2: Convert to fraction form
    59,906.40/89,859.60 = 28,802.40/x
  3. Step 3: Cross multiply
    59,906.40x = 89,859.60 × 28,802.40
  4. Step 4: Simplify right side
    59,906.40x = 2,588,172,143.04
  5. Step 5: Solve for x
    x = 2,588,172,143.04/59,906.40
  6. Step 6: Final answer
    x = 43,203.60

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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.