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Finding the Fourth Proportional to 14,094,993.60, 21,142,490.40 and 12,499,358.40

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Solution

The fourth proportional to 14,094,993.60, 21,142,490.40 and 12,499,358.40 is: 18,749,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,094,993.60 : 21,142,490.40 = 12,499,358.40 : x
  2. Step 2: Convert to fraction form
    14,094,993.60/21,142,490.40 = 12,499,358.40/x
  3. Step 3: Cross multiply
    14,094,993.60x = 21,142,490.40 × 12,499,358.40
  4. Step 4: Simplify right side
    14,094,993.60x = 264,267,564,978,159.34
  5. Step 5: Solve for x
    x = 264,267,564,978,159.34/14,094,993.60
  6. Step 6: Final answer
    x = 18,749,037.60

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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.