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Finding the Fourth Proportional to 19,157,070.15, 28,735,605.23 and 19,157,070.15

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Solution

The fourth proportional to 19,157,070.15, 28,735,605.23 and 19,157,070.15 is: 28,735,605.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157,070.15 : 28,735,605.23 = 19,157,070.15 : x
  2. Step 2: Convert to fraction form
    19,157,070.15/28,735,605.23 = 19,157,070.15/x
  3. Step 3: Cross multiply
    19,157,070.15x = 28,735,605.23 × 19,157,070.15
  4. Step 4: Simplify right side
    19,157,070.15x = 550,490,005,098,031.50
  5. Step 5: Solve for x
    x = 550,490,005,098,031.50/19,157,070.15
  6. Step 6: Final answer
    x = 28,735,605.23

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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.