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Finding the Fourth Proportional to 59,875.60, 89,683.80 and 38,880.40

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Solution

The fourth proportional to 59,875.60, 89,683.80 and 38,880.40 is: 58,236.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,875.60 : 89,683.80 = 38,880.40 : x
  2. Step 2: Convert to fraction form
    59,875.60/89,683.80 = 38,880.40/x
  3. Step 3: Cross multiply
    59,875.60x = 89,683.80 × 38,880.40
  4. Step 4: Simplify right side
    59,875.60x = 3,486,942,017.52
  5. Step 5: Solve for x
    x = 3,486,942,017.52/59,875.60
  6. Step 6: Final answer
    x = 58,236.44

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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.