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Finding the Fourth Proportional to 42,604,852.60, 63,907,278.90 and 13,851,926.20

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Solution

The fourth proportional to 42,604,852.60, 63,907,278.90 and 13,851,926.20 is: 20,777,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,604,852.60 : 63,907,278.90 = 13,851,926.20 : x
  2. Step 2: Convert to fraction form
    42,604,852.60/63,907,278.90 = 13,851,926.20/x
  3. Step 3: Cross multiply
    42,604,852.60x = 63,907,278.90 × 13,851,926.20
  4. Step 4: Simplify right side
    42,604,852.60x = 885,238,910,965,617.12
  5. Step 5: Solve for x
    x = 885,238,910,965,617.12/42,604,852.60
  6. Step 6: Final answer
    x = 20,777,889.30

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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.