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Finding the Fourth Proportional to 19,157,649.60, 28,736,474.40 and 17,888,606.40

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Solution

The fourth proportional to 19,157,649.60, 28,736,474.40 and 17,888,606.40 is: 26,832,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157,649.60 : 28,736,474.40 = 17,888,606.40 : x
  2. Step 2: Convert to fraction form
    19,157,649.60/28,736,474.40 = 17,888,606.40/x
  3. Step 3: Cross multiply
    19,157,649.60x = 28,736,474.40 × 17,888,606.40
  4. Step 4: Simplify right side
    19,157,649.60x = 514,055,479,865,276.06
  5. Step 5: Solve for x
    x = 514,055,479,865,276.06/19,157,649.60
  6. Step 6: Final answer
    x = 26,832,909.60

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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.