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Finding the Fourth Proportional to 13,772,557.60, 20,658,836.40 and 10,593,728.80

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Solution

The fourth proportional to 13,772,557.60, 20,658,836.40 and 10,593,728.80 is: 15,890,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772,557.60 : 20,658,836.40 = 10,593,728.80 : x
  2. Step 2: Convert to fraction form
    13,772,557.60/20,658,836.40 = 10,593,728.80/x
  3. Step 3: Cross multiply
    13,772,557.60x = 20,658,836.40 × 10,593,728.80
  4. Step 4: Simplify right side
    13,772,557.60x = 218,854,110,145,168.31
  5. Step 5: Solve for x
    x = 218,854,110,145,168.31/13,772,557.60
  6. Step 6: Final answer
    x = 15,890,593.20

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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.