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Finding the Fourth Proportional to 15,766,357.80, 23,649,536.70 and 15,660,069.60

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Solution

The fourth proportional to 15,766,357.80, 23,649,536.70 and 15,660,069.60 is: 23,490,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766,357.80 : 23,649,536.70 = 15,660,069.60 : x
  2. Step 2: Convert to fraction form
    15,766,357.80/23,649,536.70 = 15,660,069.60/x
  3. Step 3: Cross multiply
    15,766,357.80x = 23,649,536.70 × 15,660,069.60
  4. Step 4: Simplify right side
    15,766,357.80x = 370,353,390,729,754.31
  5. Step 5: Solve for x
    x = 370,353,390,729,754.31/15,766,357.80
  6. Step 6: Final answer
    x = 23,490,104.40

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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.