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Finding the Fourth Proportional to 60,573.60, 90,860.40 and 47,437.20

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Solution

The fourth proportional to 60,573.60, 90,860.40 and 47,437.20 is: 71,155.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,573.60 : 90,860.40 = 47,437.20 : x
  2. Step 2: Convert to fraction form
    60,573.60/90,860.40 = 47,437.20/x
  3. Step 3: Cross multiply
    60,573.60x = 90,860.40 × 47,437.20
  4. Step 4: Simplify right side
    60,573.60x = 4,310,162,966.88
  5. Step 5: Solve for x
    x = 4,310,162,966.88/60,573.60
  6. Step 6: Final answer
    x = 71,155.80

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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.