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Finding the Fourth Proportional to 16,788,064.80, 25,163,434.80 and 9,220,461.60

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Solution

The fourth proportional to 16,788,064.80, 25,163,434.80 and 9,220,461.60 is: 13,820,442.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,788,064.80 : 25,163,434.80 = 9,220,461.60 : x
  2. Step 2: Convert to fraction form
    16,788,064.80/25,163,434.80 = 9,220,461.60/x
  3. Step 3: Cross multiply
    16,788,064.80x = 25,163,434.80 × 9,220,461.60
  4. Step 4: Simplify right side
    16,788,064.80x = 232,018,484,297,503.69
  5. Step 5: Solve for x
    x = 232,018,484,297,503.69/16,788,064.80
  6. Step 6: Final answer
    x = 13,820,442.50

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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.