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Finding the Fourth Proportional to 40,307.80, 60,461.70 and 25,533.40

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Solution

The fourth proportional to 40,307.80, 60,461.70 and 25,533.40 is: 38,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,307.80 : 60,461.70 = 25,533.40 : x
  2. Step 2: Convert to fraction form
    40,307.80/60,461.70 = 25,533.40/x
  3. Step 3: Cross multiply
    40,307.80x = 60,461.70 × 25,533.40
  4. Step 4: Simplify right side
    40,307.80x = 1,543,792,770.78
  5. Step 5: Solve for x
    x = 1,543,792,770.78/40,307.80
  6. Step 6: Final answer
    x = 38,300.10

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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.