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Finding the Fourth Proportional to 46,679.60, 70,019.40 and 15,510.80

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Solution

The fourth proportional to 46,679.60, 70,019.40 and 15,510.80 is: 23,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,679.60 : 70,019.40 = 15,510.80 : x
  2. Step 2: Convert to fraction form
    46,679.60/70,019.40 = 15,510.80/x
  3. Step 3: Cross multiply
    46,679.60x = 70,019.40 × 15,510.80
  4. Step 4: Simplify right side
    46,679.60x = 1,086,056,909.52
  5. Step 5: Solve for x
    x = 1,086,056,909.52/46,679.60
  6. Step 6: Final answer
    x = 23,266.20

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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.