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Finding the Fourth Proportional to 14,948,721.60, 20,942,382 and 14,948,721.60

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Solution

The fourth proportional to 14,948,721.60, 20,942,382 and 14,948,721.60 is: 20,942,382

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,948,721.60 : 20,942,382 = 14,948,721.60 : x
  2. Step 2: Convert to fraction form
    14,948,721.60/20,942,382 = 14,948,721.60/x
  3. Step 3: Cross multiply
    14,948,721.60x = 20,942,382 × 14,948,721.60
  4. Step 4: Simplify right side
    14,948,721.60x = 313,061,838,158,851.19
  5. Step 5: Solve for x
    x = 313,061,838,158,851.19/14,948,721.60
  6. Step 6: Final answer
    x = 20,942,382

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.