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Finding the Fourth Proportional to 70,950.01, 97,909.14 and 39,118.09

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Solution

The fourth proportional to 70,950.01, 97,909.14 and 39,118.09 is: 53,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,950.01 : 97,909.14 = 39,118.09 : x
  2. Step 2: Convert to fraction form
    70,950.01/97,909.14 = 39,118.09/x
  3. Step 3: Cross multiply
    70,950.01x = 97,909.14 × 39,118.09
  4. Step 4: Simplify right side
    70,950.01x = 3,830,018,550.34
  5. Step 5: Solve for x
    x = 3,830,018,550.34/70,950.01
  6. Step 6: Final answer
    x = 53,981.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.