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Finding the Fourth Proportional to 48,307.80, 72,461.70 and 47,530.20

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Solution

The fourth proportional to 48,307.80, 72,461.70 and 47,530.20 is: 71,295.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,307.80 : 72,461.70 = 47,530.20 : x
  2. Step 2: Convert to fraction form
    48,307.80/72,461.70 = 47,530.20/x
  3. Step 3: Cross multiply
    48,307.80x = 72,461.70 × 47,530.20
  4. Step 4: Simplify right side
    48,307.80x = 3,444,119,093.34
  5. Step 5: Solve for x
    x = 3,444,119,093.34/48,307.80
  6. Step 6: Final answer
    x = 71,295.30

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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.