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Finding the Fourth Proportional to 13,457,477.70, 20,186,216.55 and 13,457,477.70

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Solution

The fourth proportional to 13,457,477.70, 20,186,216.55 and 13,457,477.70 is: 20,186,216.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,477.70 : 20,186,216.55 = 13,457,477.70 : x
  2. Step 2: Convert to fraction form
    13,457,477.70/20,186,216.55 = 13,457,477.70/x
  3. Step 3: Cross multiply
    13,457,477.70x = 20,186,216.55 × 13,457,477.70
  4. Step 4: Simplify right side
    13,457,477.70x = 271,655,559,068,995.94
  5. Step 5: Solve for x
    x = 271,655,559,068,995.94/13,457,477.70
  6. Step 6: Final answer
    x = 20,186,216.55

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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.