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Finding the Fourth Proportional to 30,563.95, 45,852.53 and 9,503.60

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Solution

The fourth proportional to 30,563.95, 45,852.53 and 9,503.60 is: 14,257.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,563.95 : 45,852.53 = 9,503.60 : x
  2. Step 2: Convert to fraction form
    30,563.95/45,852.53 = 9,503.60/x
  3. Step 3: Cross multiply
    30,563.95x = 45,852.53 × 9,503.60
  4. Step 4: Simplify right side
    30,563.95x = 435,763,880.79
  5. Step 5: Solve for x
    x = 435,763,880.79/30,563.95
  6. Step 6: Final answer
    x = 14,257.45

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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.