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Finding the Fourth Proportional to 10,602,600.60, 15,903,900.90 and 9,216,917.40

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Solution

The fourth proportional to 10,602,600.60, 15,903,900.90 and 9,216,917.40 is: 13,825,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,602,600.60 : 15,903,900.90 = 9,216,917.40 : x
  2. Step 2: Convert to fraction form
    10,602,600.60/15,903,900.90 = 9,216,917.40/x
  3. Step 3: Cross multiply
    10,602,600.60x = 15,903,900.90 × 9,216,917.40
  4. Step 4: Simplify right side
    10,602,600.60x = 146,584,940,933,085.66
  5. Step 5: Solve for x
    x = 146,584,940,933,085.66/10,602,600.60
  6. Step 6: Final answer
    x = 13,825,376.10

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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.