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Finding the Fourth Proportional to 12,894,219.30, 19,341,328.95 and 12,894,219.30

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Solution

The fourth proportional to 12,894,219.30, 19,341,328.95 and 12,894,219.30 is: 19,341,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894,219.30 : 19,341,328.95 = 12,894,219.30 : x
  2. Step 2: Convert to fraction form
    12,894,219.30/19,341,328.95 = 12,894,219.30/x
  3. Step 3: Cross multiply
    12,894,219.30x = 19,341,328.95 × 12,894,219.30
  4. Step 4: Simplify right side
    12,894,219.30x = 249,391,337,034,738.75
  5. Step 5: Solve for x
    x = 249,391,337,034,738.75/12,894,219.30
  6. Step 6: Final answer
    x = 19,341,328.95

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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.